ACPI_STATUS
acpi_tb_validate_table_header (
ACPI_TABLE_HEADER *table_header)
{
ACPI_NAME signature;
/* Verify that this is a valid address */
if (!acpi_os_readable (table_header, sizeof (ACPI_TABLE_HEADER))) {
return (AE_BAD_ADDRESS);
}
/* Ensure that the signature is 4 ASCII characters */
MOVE_UNALIGNED32_TO_32 (&signature, &table_header->signature);
if (!acpi_cm_valid_acpi_name (signature)) {
REPORT_WARNING (("Invalid table signature found\n"));
return (AE_BAD_SIGNATURE);
}
/* Validate the table length */
if (table_header->length < sizeof (ACPI_TABLE_HEADER)) {
REPORT_WARNING (("Invalid table header length found\n"));
return (AE_BAD_HEADER);
}
return (AE_OK);
}
ACPI_STATUS
AcpiDsMethodDataInit (
ACPI_WALK_STATE *WalkState)
{
UINT32 i;
FUNCTION_TRACE ("DsMethodDataInit");
/*
* WalkState fields are initialized to zero by the
* ACPI_MEM_CALLOCATE().
*
* An Node is assigned to each argument and local so
* that RefOf() can return a pointer to the Node.
*/
/* Init the method arguments */
for (i = 0; i < MTH_NUM_ARGS; i++)
{
MOVE_UNALIGNED32_TO_32 (&WalkState->Arguments[i].Name,
NAMEOF_ARG_NTE);
WalkState->Arguments[i].Name |= (i << 24);
WalkState->Arguments[i].DataType = ACPI_DESC_TYPE_NAMED;
WalkState->Arguments[i].Type = ACPI_TYPE_ANY;
WalkState->Arguments[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
}
/* Init the method locals */
for (i = 0; i < MTH_NUM_LOCALS; i++)
{
MOVE_UNALIGNED32_TO_32 (&WalkState->LocalVariables[i].Name,
NAMEOF_LOCAL_NTE);
WalkState->LocalVariables[i].Name |= (i << 24);
WalkState->LocalVariables[i].DataType = ACPI_DESC_TYPE_NAMED;
WalkState->LocalVariables[i].Type = ACPI_TYPE_ANY;
WalkState->LocalVariables[i].Flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
}
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_ds_method_data_init (
acpi_walk_state *walk_state)
{
u32 i;
FUNCTION_TRACE ("Ds_method_data_init");
/*
* Walk_state fields are initialized to zero by the
* ACPI_MEM_CALLOCATE().
*
* An Node is assigned to each argument and local so
* that Ref_of() can return a pointer to the Node.
*/
/* Init the method arguments */
for (i = 0; i < MTH_NUM_ARGS; i++) {
MOVE_UNALIGNED32_TO_32 (&walk_state->arguments[i].name,
NAMEOF_ARG_NTE);
walk_state->arguments[i].name |= (i << 24);
walk_state->arguments[i].data_type = ACPI_DESC_TYPE_NAMED;
walk_state->arguments[i].type = ACPI_TYPE_ANY;
walk_state->arguments[i].flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG;
}
/* Init the method locals */
for (i = 0; i < MTH_NUM_LOCALS; i++) {
MOVE_UNALIGNED32_TO_32 (&walk_state->local_variables[i].name,
NAMEOF_LOCAL_NTE);
walk_state->local_variables[i].name |= (i << 24);
walk_state->local_variables[i].data_type = ACPI_DESC_TYPE_NAMED;
walk_state->local_variables[i].type = ACPI_TYPE_ANY;
walk_state->local_variables[i].flags = ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL;
}
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_ns_handle_to_pathname (
acpi_handle target_handle,
u32 *buf_size,
NATIVE_CHAR *user_buffer)
{
acpi_status status = AE_OK;
acpi_namespace_node *node;
u32 path_length;
u32 user_buf_size;
acpi_name name;
u32 size;
FUNCTION_TRACE_PTR ("Ns_handle_to_pathname", target_handle);
if (!acpi_gbl_root_node) {
/*
* If the name space has not been initialized,
* this function should not have been called.
*/
return_ACPI_STATUS (AE_NO_NAMESPACE);
}
node = acpi_ns_map_handle_to_node (target_handle);
if (!node) {
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Set return length to the required path length */
path_length = acpi_ns_get_pathname_length (node);
size = path_length - 1;
user_buf_size = *buf_size;
*buf_size = path_length;
/* Check if the user buffer is sufficiently large */
if (path_length > user_buf_size) {
status = AE_BUFFER_OVERFLOW;
goto exit;
}
/* Store null terminator */
user_buffer[size] = 0;
size -= ACPI_NAME_SIZE;
/* Put the original ACPI name at the end of the path */
MOVE_UNALIGNED32_TO_32 ((user_buffer + size),
&node->name);
user_buffer[--size] = PATH_SEPARATOR;
/* Build name backwards, putting "." between segments */
while ((size > ACPI_NAME_SIZE) && node) {
size -= ACPI_NAME_SIZE;
name = acpi_ns_find_parent_name (node);
MOVE_UNALIGNED32_TO_32 ((user_buffer + size), &name);
user_buffer[--size] = PATH_SEPARATOR;
node = acpi_ns_get_parent_object (node);
}
/*
* Overlay the "." preceding the first segment with
* the root name "\"
*/
user_buffer[size] = '\\';
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Len=%X, %s \n", path_length, user_buffer));
exit:
return_ACPI_STATUS (status);
}
ACPI_STATUS
AcpiExGetBufferFieldValue (
ACPI_OPERAND_OBJECT *ObjDesc,
ACPI_OPERAND_OBJECT *ResultDesc)
{
ACPI_STATUS Status;
UINT32 Mask;
UINT8 *Location;
FUNCTION_TRACE ("ExGetBufferFieldValue");
/*
* Parameter validation
*/
if (!ObjDesc)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null field pointer\n"));
return_ACPI_STATUS (AE_AML_NO_OPERAND);
}
if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID))
{
Status = AcpiDsGetBufferFieldArguments (ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
if (!ObjDesc->BufferField.BufferObj)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null container pointer\n"));
return_ACPI_STATUS (AE_AML_INTERNAL);
}
if (ACPI_TYPE_BUFFER != ObjDesc->BufferField.BufferObj->Common.Type)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - container is not a Buffer\n"));
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
if (!ResultDesc)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Internal - null result pointer\n"));
return_ACPI_STATUS (AE_AML_INTERNAL);
}
/* Field location is (base of buffer) + (byte offset) */
Location = ObjDesc->BufferField.BufferObj->Buffer.Pointer
+ ObjDesc->BufferField.BaseByteOffset;
/*
* Construct Mask with as many 1 bits as the field width
*
* NOTE: Only the bottom 5 bits are valid for a shift operation, so
* special care must be taken for any shift greater than 31 bits.
*
* TBD: [Unhandled] Fields greater than 32 bits will not work.
*/
if (ObjDesc->BufferField.BitLength < 32)
{
Mask = ((UINT32) 1 << ObjDesc->BufferField.BitLength) - (UINT32) 1;
}
else
{
Mask = ACPI_UINT32_MAX;
}
ResultDesc->Integer.Type = (UINT8) ACPI_TYPE_INTEGER;
/* Get the 32 bit value at the location */
MOVE_UNALIGNED32_TO_32 (&ResultDesc->Integer.Value, Location);
/*
* Shift the 32-bit word containing the field, and mask off the
* resulting value
*/
ResultDesc->Integer.Value =
(ResultDesc->Integer.Value >> ObjDesc->BufferField.StartFieldBitOffset) & Mask;
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"** Read from buffer %p byte %ld bit %d width %d addr %p mask %08lx val %08lx\n",
ObjDesc->BufferField.BufferObj->Buffer.Pointer,
ObjDesc->BufferField.BaseByteOffset,
ObjDesc->BufferField.StartFieldBitOffset,
ObjDesc->BufferField.BitLength,
Location, Mask, ResultDesc->Integer.Value));
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
acpi_ns_lookup (
ACPI_GENERIC_STATE *scope_info,
NATIVE_CHAR *pathname,
OBJECT_TYPE_INTERNAL type,
OPERATING_MODE interpreter_mode,
u32 flags,
ACPI_WALK_STATE *walk_state,
ACPI_NAMESPACE_NODE **return_node)
{
ACPI_STATUS status;
ACPI_NAMESPACE_NODE *prefix_node;
ACPI_NAMESPACE_NODE *current_node = NULL;
ACPI_NAMESPACE_NODE *scope_to_push = NULL;
ACPI_NAMESPACE_NODE *this_node = NULL;
u32 num_segments;
ACPI_NAME simple_name;
u8 null_name_path = FALSE;
OBJECT_TYPE_INTERNAL type_to_check_for;
OBJECT_TYPE_INTERNAL this_search_type;
DEBUG_ONLY_MEMBERS (u32 i)
if (!return_node) {
return (AE_BAD_PARAMETER);
}
acpi_gbl_ns_lookup_count++;
*return_node = ENTRY_NOT_FOUND;
if (!acpi_gbl_root_node) {
return (AE_NO_NAMESPACE);
}
/*
* Get the prefix scope.
* A null scope means use the root scope
*/
if ((!scope_info) ||
(!scope_info->scope.node))
{
prefix_node = acpi_gbl_root_node;
}
else {
prefix_node = scope_info->scope.node;
}
/*
* This check is explicitly split provide relax the Type_to_check_for
* conditions for Bank_field_defn. Originally, both Bank_field_defn and
* Def_field_defn caused Type_to_check_for to be set to ACPI_TYPE_REGION,
* but the Bank_field_defn may also check for a Field definition as well
* as an Operation_region.
*/
if (INTERNAL_TYPE_DEF_FIELD_DEFN == type) {
/* Def_field_defn defines fields in a Region */
type_to_check_for = ACPI_TYPE_REGION;
}
else if (INTERNAL_TYPE_BANK_FIELD_DEFN == type) {
/* Bank_field_defn defines data fields in a Field Object */
type_to_check_for = ACPI_TYPE_ANY;
}
else {
type_to_check_for = type;
}
/* TBD: [Restructure] - Move the pathname stuff into a new procedure */
/* Examine the name pointer */
if (!pathname) {
/* 8-12-98 ASL Grammar Update supports null Name_path */
null_name_path = TRUE;
num_segments = 0;
this_node = acpi_gbl_root_node;
}
else {
/*
* Valid name pointer (Internal name format)
*
* Check for prefixes. As represented in the AML stream, a
* Pathname consists of an optional scope prefix followed by
* a segment part.
*
* If present, the scope prefix is either a Root_prefix (in
* which case the name is fully qualified), or zero or more
* Parent_prefixes (in which case the name's scope is relative
* to the current scope).
*
* The segment part consists of either:
* - A single 4-byte name segment, or
* - A Dual_name_prefix followed by two 4-byte name segments, or
* - A Multi_name_prefix_op, followed by a byte indicating the
* number of segments and the segments themselves.
*/
if (*pathname == AML_ROOT_PREFIX) {
/* Pathname is fully qualified, look in root name table */
current_node = acpi_gbl_root_node;
/* point to segment part */
pathname++;
/* Direct reference to root, "\" */
if (!(*pathname)) {
this_node = acpi_gbl_root_node;
goto check_for_new_scope_and_exit;
}
}
else {
/* Pathname is relative to current scope, start there */
current_node = prefix_node;
/*
* Handle up-prefix (carat). More than one prefix
* is supported
*/
while (*pathname == AML_PARENT_PREFIX) {
/* Point to segment part or next Parent_prefix */
pathname++;
/* Backup to the parent's scope */
this_node = acpi_ns_get_parent_object (current_node);
if (!this_node) {
/* Current scope has no parent scope */
REPORT_ERROR (("Too many parent prefixes (^) - reached root\n"));
return (AE_NOT_FOUND);
}
current_node = this_node;
}
}
/*
* Examine the name prefix opcode, if any,
* to determine the number of segments
*/
if (*pathname == AML_DUAL_NAME_PREFIX) {
num_segments = 2;
/* point to first segment */
pathname++;
}
else if (*pathname == AML_MULTI_NAME_PREFIX_OP) {
num_segments = (u32)* (u8 *) ++pathname;
/* point to first segment */
pathname++;
}
else {
/*
* No Dual or Multi prefix, hence there is only one
* segment and Pathname is already pointing to it.
*/
num_segments = 1;
}
}
/*
* Search namespace for each segment of the name.
* Loop through and verify/add each name segment.
*/
while (num_segments-- && current_node) {
/*
* Search for the current name segment under the current
* named object. The Type is significant only at the last (topmost)
* level. (We don't care about the types along the path, only
* the type of the final target object.)
*/
this_search_type = ACPI_TYPE_ANY;
if (!num_segments) {
this_search_type = type;
}
/* Pluck one ACPI name from the front of the pathname */
MOVE_UNALIGNED32_TO_32 (&simple_name, pathname);
/* Try to find the ACPI name */
status = acpi_ns_search_and_enter (simple_name, walk_state,
current_node, interpreter_mode,
this_search_type, flags,
&this_node);
if (ACPI_FAILURE (status)) {
if (status == AE_NOT_FOUND) {
/* Name not found in ACPI namespace */
}
return (status);
}
/*
* If 1) This is the last segment (Num_segments == 0)
* 2) and looking for a specific type
* (Not checking for TYPE_ANY)
* 3) Which is not an alias
* 4) which is not a local type (TYPE_DEF_ANY)
* 5) which is not a local type (TYPE_SCOPE)
* 6) which is not a local type (TYPE_INDEX_FIELD_DEFN)
* 7) and type of object is known (not TYPE_ANY)
* 8) and object does not match request
*
* Then we have a type mismatch. Just warn and ignore it.
*/
if ((num_segments == 0) &&
(type_to_check_for != ACPI_TYPE_ANY) &&
(type_to_check_for != INTERNAL_TYPE_ALIAS) &&
(type_to_check_for != INTERNAL_TYPE_DEF_ANY) &&
(type_to_check_for != INTERNAL_TYPE_SCOPE) &&
(type_to_check_for != INTERNAL_TYPE_INDEX_FIELD_DEFN) &&
(this_node->type != ACPI_TYPE_ANY) &&
(this_node->type != type_to_check_for))
{
/* Complain about a type mismatch */
REPORT_WARNING (
("Ns_lookup: %4.4s, type %X, checking for type %X\n",
&simple_name, this_node->type, type_to_check_for));
}
/*
* If this is the last name segment and we are not looking for a
* specific type, but the type of found object is known, use that type
* to see if it opens a scope.
*/
if ((0 == num_segments) && (ACPI_TYPE_ANY == type)) {
type = this_node->type;
}
if ((num_segments || acpi_ns_opens_scope (type)) &&
(this_node->child == NULL))
{
/*
* More segments or the type implies enclosed scope,
* and the next scope has not been allocated.
*/
}
current_node = this_node;
/* point to next name segment */
pathname += ACPI_NAME_SIZE;
}
/*
* Always check if we need to open a new scope
*/
check_for_new_scope_and_exit:
if (!(flags & NS_DONT_OPEN_SCOPE) && (walk_state)) {
/*
* If entry is a type which opens a scope,
* push the new scope on the scope stack.
*/
if (acpi_ns_opens_scope (type_to_check_for)) {
/* 8-12-98 ASL Grammar Update supports null Name_path */
if (null_name_path) {
/* TBD: [Investigate] - is this the correct thing to do? */
scope_to_push = NULL;
}
else {
scope_to_push = this_node;
}
status = acpi_ds_scope_stack_push (scope_to_push, type,
walk_state);
if (ACPI_FAILURE (status)) {
return (status);
}
}
}
*return_node = this_node;
return (AE_OK);
}
void
AcpiUtDumpBuffer (
UINT8 *Buffer,
UINT32 Count,
UINT32 Display,
UINT32 ComponentId)
{
UINT32 i = 0;
UINT32 j;
UINT32 Temp32;
UINT8 BufChar;
/* Only dump the buffer if tracing is enabled */
if (!((ACPI_LV_TABLES & AcpiDbgLevel) &&
(ComponentId & AcpiDbgLayer)))
{
return;
}
/*
* Nasty little dump buffer routine!
*/
while (i < Count)
{
/* Print current offset */
AcpiOsPrintf ("%05X ", i);
/* Print 16 hex chars */
for (j = 0; j < 16;)
{
if (i + j >= Count)
{
AcpiOsPrintf ("\n");
return;
}
/* Make sure that the INT8 doesn't get sign-extended! */
switch (Display)
{
/* Default is BYTE display */
default:
AcpiOsPrintf ("%02X ",
*((UINT8 *) &Buffer[i + j]));
j += 1;
break;
case DB_WORD_DISPLAY:
MOVE_UNALIGNED16_TO_32 (&Temp32,
&Buffer[i + j]);
AcpiOsPrintf ("%04X ", Temp32);
j += 2;
break;
case DB_DWORD_DISPLAY:
MOVE_UNALIGNED32_TO_32 (&Temp32,
&Buffer[i + j]);
AcpiOsPrintf ("%08X ", Temp32);
j += 4;
break;
case DB_QWORD_DISPLAY:
MOVE_UNALIGNED32_TO_32 (&Temp32,
&Buffer[i + j]);
AcpiOsPrintf ("%08X", Temp32);
MOVE_UNALIGNED32_TO_32 (&Temp32,
&Buffer[i + j + 4]);
AcpiOsPrintf ("%08X ", Temp32);
j += 8;
break;
}
}
/*
* Print the ASCII equivalent characters
* But watch out for the bad unprintable ones...
*/
for (j = 0; j < 16; j++)
{
if (i + j >= Count)
{
AcpiOsPrintf ("\n");
return;
}
BufChar = Buffer[i + j];
if ((BufChar > 0x1F && BufChar < 0x2E) ||
(BufChar > 0x2F && BufChar < 0x61) ||
(BufChar > 0x60 && BufChar < 0x7F))
{
AcpiOsPrintf ("%c", BufChar);
}
else
{
AcpiOsPrintf (".");
}
}
/* Done with that line. */
AcpiOsPrintf ("\n");
i += 16;
}
return;
}
acpi_status
acpi_ex_system_memory_space_handler (
u32 function,
ACPI_PHYSICAL_ADDRESS address,
u32 bit_width,
u32 *value,
void *handler_context,
void *region_context)
{
acpi_status status = AE_OK;
void *logical_addr_ptr = NULL;
acpi_mem_space_context *mem_info = region_context;
u32 length;
FUNCTION_TRACE ("Ex_system_memory_space_handler");
/* Validate and translate the bit width */
switch (bit_width) {
case 8:
length = 1;
break;
case 16:
length = 2;
break;
case 32:
length = 4;
break;
default:
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid System_memory width %d\n",
bit_width));
return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
break;
}
/*
* Does the request fit into the cached memory mapping?
* Is 1) Address below the current mapping? OR
* 2) Address beyond the current mapping?
*/
if ((address < mem_info->mapped_physical_address) ||
(((acpi_integer) address + length) >
((acpi_integer) mem_info->mapped_physical_address + mem_info->mapped_length))) {
/*
* The request cannot be resolved by the current memory mapping;
* Delete the existing mapping and create a new one.
*/
if (mem_info->mapped_length) {
/* Valid mapping, delete it */
acpi_os_unmap_memory (mem_info->mapped_logical_address,
mem_info->mapped_length);
}
mem_info->mapped_length = 0; /* In case of failure below */
/* Create a new mapping starting at the address given */
status = acpi_os_map_memory (address, SYSMEM_REGION_WINDOW_SIZE,
(void **) &mem_info->mapped_logical_address);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Save the physical address and mapping size */
mem_info->mapped_physical_address = address;
mem_info->mapped_length = SYSMEM_REGION_WINDOW_SIZE;
}
/*
* Generate a logical pointer corresponding to the address we want to
* access
*/
/* TBD: should these pointers go to 64-bit in all cases ? */
logical_addr_ptr = mem_info->mapped_logical_address +
((acpi_integer) address - (acpi_integer) mem_info->mapped_physical_address);
ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
"System_memory %d (%d width) Address=%8.8X%8.8X\n", function, bit_width,
HIDWORD (address), LODWORD (address)));
/* Perform the memory read or write */
switch (function) {
case ACPI_READ_ADR_SPACE:
switch (bit_width) {
case 8:
*value = (u32)* (u8 *) logical_addr_ptr;
break;
case 16:
MOVE_UNALIGNED16_TO_32 (value, logical_addr_ptr);
break;
case 32:
MOVE_UNALIGNED32_TO_32 (value, logical_addr_ptr);
break;
}
break;
case ACPI_WRITE_ADR_SPACE:
switch (bit_width) {
case 8:
*(u8 *) logical_addr_ptr = (u8) *value;
break;
case 16:
MOVE_UNALIGNED16_TO_16 (logical_addr_ptr, value);
break;
case 32:
MOVE_UNALIGNED32_TO_32 (logical_addr_ptr, value);
break;
}
break;
default:
status = AE_BAD_PARAMETER;
break;
}
return_ACPI_STATUS (status);
}
ACPI_STATUS
AcpiNsHandleToPathname (
ACPI_HANDLE TargetHandle,
UINT32 *BufSize,
NATIVE_CHAR *UserBuffer)
{
ACPI_STATUS Status = AE_OK;
ACPI_NAMESPACE_NODE *Node;
UINT32 PathLength;
UINT32 UserBufSize;
ACPI_NAME Name;
UINT32 Size;
FUNCTION_TRACE_PTR ("NsHandleToPathname", TargetHandle);
if (!AcpiGbl_RootNode)
{
/*
* If the name space has not been initialized,
* this function should not have been called.
*/
return_ACPI_STATUS (AE_NO_NAMESPACE);
}
Node = AcpiNsConvertHandleToEntry (TargetHandle);
if (!Node)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Set return length to the required path length */
PathLength = AcpiNsGetPathnameLength (Node);
Size = PathLength - 1;
UserBufSize = *BufSize;
*BufSize = PathLength;
/* Check if the user buffer is sufficiently large */
if (PathLength > UserBufSize)
{
Status = AE_BUFFER_OVERFLOW;
goto Exit;
}
/* Store null terminator */
UserBuffer[Size] = 0;
Size -= ACPI_NAME_SIZE;
/* Put the original ACPI name at the end of the path */
MOVE_UNALIGNED32_TO_32 ((UserBuffer + Size),
&Node->Name);
UserBuffer[--Size] = PATH_SEPARATOR;
/* Build name backwards, putting "." between segments */
while ((Size > ACPI_NAME_SIZE) && Node)
{
Size -= ACPI_NAME_SIZE;
Name = AcpiNsFindParentName (Node);
MOVE_UNALIGNED32_TO_32 ((UserBuffer + Size), &Name);
UserBuffer[--Size] = PATH_SEPARATOR;
Node = AcpiNsGetParentObject (Node);
}
/*
* Overlay the "." preceding the first segment with
* the root name "\"
*/
UserBuffer[Size] = '\\';
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Len=%X, %s \n", PathLength, UserBuffer));
Exit:
return_ACPI_STATUS (Status);
}
ACPI_PARSE_OBJECT *
AcpiPsGetNextField (
ACPI_PARSE_STATE *ParserState)
{
UINT32 AmlOffset = ParserState->Aml -
ParserState->AmlStart;
ACPI_PARSE_OBJECT *Field;
UINT16 Opcode;
UINT32 Name;
FUNCTION_TRACE ("PsGetNextField");
/* determine field type */
switch (GET8 (ParserState->Aml))
{
default:
Opcode = AML_INT_NAMEDFIELD_OP;
break;
case 0x00:
Opcode = AML_INT_RESERVEDFIELD_OP;
ParserState->Aml++;
break;
case 0x01:
Opcode = AML_INT_ACCESSFIELD_OP;
ParserState->Aml++;
break;
}
/* Allocate a new field op */
Field = AcpiPsAllocOp (Opcode);
if (Field)
{
Field->AmlOffset = AmlOffset;
/* Decode the field type */
switch (Opcode)
{
case AML_INT_NAMEDFIELD_OP:
/* Get the 4-character name */
MOVE_UNALIGNED32_TO_32 (&Name, ParserState->Aml);
AcpiPsSetName (Field, Name);
ParserState->Aml += 4;
/* Get the length which is encoded as a package length */
Field->Value.Size = AcpiPsGetNextPackageLength (ParserState);
break;
case AML_INT_RESERVEDFIELD_OP:
/* Get the length which is encoded as a package length */
Field->Value.Size = AcpiPsGetNextPackageLength (ParserState);
break;
case AML_INT_ACCESSFIELD_OP:
/* Get AccessType and AccessAtrib and merge into the field Op */
Field->Value.Integer = ((GET8 (ParserState->Aml) << 8) |
GET8 (ParserState->Aml));
ParserState->Aml += 2;
break;
}
}
return_PTR (Field);
}
void
AcpiPsGetNextSimpleArg (
ACPI_PARSE_STATE *ParserState,
UINT32 ArgType,
ACPI_PARSE_OBJECT *Arg)
{
FUNCTION_TRACE_U32 ("PsGetNextSimpleArg", ArgType);
switch (ArgType)
{
case ARGP_BYTEDATA:
AcpiPsInitOp (Arg, AML_BYTE_OP);
Arg->Value.Integer = (UINT32) GET8 (ParserState->Aml);
ParserState->Aml++;
break;
case ARGP_WORDDATA:
AcpiPsInitOp (Arg, AML_WORD_OP);
/* Get 2 bytes from the AML stream */
MOVE_UNALIGNED16_TO_32 (&Arg->Value.Integer, ParserState->Aml);
ParserState->Aml += 2;
break;
case ARGP_DWORDDATA:
AcpiPsInitOp (Arg, AML_DWORD_OP);
/* Get 4 bytes from the AML stream */
MOVE_UNALIGNED32_TO_32 (&Arg->Value.Integer, ParserState->Aml);
ParserState->Aml += 4;
break;
case ARGP_QWORDDATA:
AcpiPsInitOp (Arg, AML_QWORD_OP);
/* Get 8 bytes from the AML stream */
MOVE_UNALIGNED64_TO_64 (&Arg->Value.Integer, ParserState->Aml);
ParserState->Aml += 8;
break;
case ARGP_CHARLIST:
AcpiPsInitOp (Arg, AML_STRING_OP);
Arg->Value.String = (char*) ParserState->Aml;
while (GET8 (ParserState->Aml) != '\0')
{
ParserState->Aml++;
}
ParserState->Aml++;
break;
case ARGP_NAME:
case ARGP_NAMESTRING:
AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
Arg->Value.Name = AcpiPsGetNextNamestring (ParserState);
break;
}
return_VOID;
}
void
acpi_ut_dump_buffer (
u8 *buffer,
u32 count,
u32 display,
u32 component_id)
{
u32 i = 0;
u32 j;
u32 temp32;
u8 buf_char;
/* Only dump the buffer if tracing is enabled */
if (!((ACPI_LV_TABLES & acpi_dbg_level) &&
(component_id & acpi_dbg_layer))) {
return;
}
/*
* Nasty little dump buffer routine!
*/
while (i < count) {
/* Print current offset */
acpi_os_printf ("%05X ", i);
/* Print 16 hex chars */
for (j = 0; j < 16;) {
if (i + j >= count) {
acpi_os_printf ("\n");
return;
}
/* Make sure that the s8 doesn't get sign-extended! */
switch (display) {
/* Default is BYTE display */
default:
acpi_os_printf ("%02X ",
*((u8 *) &buffer[i + j]));
j += 1;
break;
case DB_WORD_DISPLAY:
MOVE_UNALIGNED16_TO_32 (&temp32,
&buffer[i + j]);
acpi_os_printf ("%04X ", temp32);
j += 2;
break;
case DB_DWORD_DISPLAY:
MOVE_UNALIGNED32_TO_32 (&temp32,
&buffer[i + j]);
acpi_os_printf ("%08X ", temp32);
j += 4;
break;
case DB_QWORD_DISPLAY:
MOVE_UNALIGNED32_TO_32 (&temp32,
&buffer[i + j]);
acpi_os_printf ("%08X", temp32);
MOVE_UNALIGNED32_TO_32 (&temp32,
&buffer[i + j + 4]);
acpi_os_printf ("%08X ", temp32);
j += 8;
break;
}
}
/*
* Print the ASCII equivalent characters
* But watch out for the bad unprintable ones...
*/
for (j = 0; j < 16; j++) {
if (i + j >= count) {
acpi_os_printf ("\n");
return;
}
buf_char = buffer[i + j];
if ((buf_char > 0x1F && buf_char < 0x2E) ||
(buf_char > 0x2F && buf_char < 0x61) ||
(buf_char > 0x60 && buf_char < 0x7F)) {
acpi_os_printf ("%c", buf_char);
}
else {
acpi_os_printf (".");
}
}
/* Done with that line. */
acpi_os_printf ("\n");
i += 16;
}
return;
}
ACPI_PARSE_OBJECT *
acpi_ps_get_next_field (
ACPI_PARSE_STATE *parser_state)
{
ACPI_PTRDIFF aml_offset = parser_state->aml -
parser_state->aml_start;
ACPI_PARSE_OBJECT *field;
u16 opcode;
u32 name;
/* determine field type */
switch (GET8 (parser_state->aml))
{
default:
opcode = AML_NAMEDFIELD_OP;
break;
case 0x00:
opcode = AML_RESERVEDFIELD_OP;
parser_state->aml++;
break;
case 0x01:
opcode = AML_ACCESSFIELD_OP;
parser_state->aml++;
break;
}
/* Allocate a new field op */
field = acpi_ps_alloc_op (opcode);
if (field) {
field->aml_offset = aml_offset;
/* Decode the field type */
switch (opcode)
{
case AML_NAMEDFIELD_OP:
/* Get the 4-character name */
MOVE_UNALIGNED32_TO_32 (&name, parser_state->aml);
acpi_ps_set_name (field, name);
parser_state->aml += 4;
/* Get the length which is encoded as a package length */
field->value.size = acpi_ps_get_next_package_length (parser_state);
break;
case AML_RESERVEDFIELD_OP:
/* Get the length which is encoded as a package length */
field->value.size = acpi_ps_get_next_package_length (parser_state);
break;
case AML_ACCESSFIELD_OP:
/* Get Access_type and Access_atrib and merge into the field Op */
field->value.integer = ((GET8 (parser_state->aml) << 8) |
GET8 (parser_state->aml));
parser_state->aml += 2;
break;
}
}
return (field);
}
void
acpi_ps_get_next_simple_arg (
ACPI_PARSE_STATE *parser_state,
u32 arg_type,
ACPI_PARSE_OBJECT *arg)
{
switch (arg_type)
{
case ARGP_BYTEDATA:
acpi_ps_init_op (arg, AML_BYTE_OP);
arg->value.integer = (u32) GET8 (parser_state->aml);
parser_state->aml++;
break;
case ARGP_WORDDATA:
acpi_ps_init_op (arg, AML_WORD_OP);
/* Get 2 bytes from the AML stream */
MOVE_UNALIGNED16_TO_32 (&arg->value.integer, parser_state->aml);
parser_state->aml += 2;
break;
case ARGP_DWORDDATA:
acpi_ps_init_op (arg, AML_DWORD_OP);
/* Get 4 bytes from the AML stream */
MOVE_UNALIGNED32_TO_32 (&arg->value.integer, parser_state->aml);
parser_state->aml += 4;
break;
case ARGP_CHARLIST:
acpi_ps_init_op (arg, AML_STRING_OP);
arg->value.string = (char*) parser_state->aml;
while (GET8 (parser_state->aml) != '\0') {
parser_state->aml++;
}
parser_state->aml++;
break;
case ARGP_NAME:
case ARGP_NAMESTRING:
acpi_ps_init_op (arg, AML_NAMEPATH_OP);
arg->value.name = acpi_ps_get_next_namestring (parser_state);
break;
}
return;
}
NATIVE_CHAR *
acpi_ns_get_table_pathname (
acpi_namespace_node *node)
{
NATIVE_CHAR *name_buffer;
u32 size;
acpi_name name;
acpi_namespace_node *child_node;
acpi_namespace_node *parent_node;
FUNCTION_TRACE_PTR ("Ns_get_table_pathname", node);
if (!acpi_gbl_root_node || !node) {
/*
* If the name space has not been initialized,
* this function should not have been called.
*/
return_PTR (NULL);
}
child_node = node->child;
/* Calculate required buffer size based on depth below root */
size = 1;
parent_node = child_node;
while (parent_node) {
parent_node = acpi_ns_get_parent_object (parent_node);
if (parent_node) {
size += ACPI_NAME_SIZE;
}
}
/* Allocate a buffer to be returned to caller */
name_buffer = ACPI_MEM_CALLOCATE (size + 1);
if (!name_buffer) {
REPORT_ERROR (("Ns_get_table_pathname: allocation failure\n"));
return_PTR (NULL);
}
/* Store terminator byte, then build name backwards */
name_buffer[size] = '\0';
while ((size > ACPI_NAME_SIZE) &&
acpi_ns_get_parent_object (child_node)) {
size -= ACPI_NAME_SIZE;
name = acpi_ns_find_parent_name (child_node);
/* Put the name into the buffer */
MOVE_UNALIGNED32_TO_32 ((name_buffer + size), &name);
child_node = acpi_ns_get_parent_object (child_node);
}
name_buffer[--size] = AML_ROOT_PREFIX;
if (size != 0) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad pointer returned; size=%X\n", size));
}
return_PTR (name_buffer);
}
NATIVE_CHAR *
AcpiNsGetTablePathname (
ACPI_NAMESPACE_NODE *Node)
{
NATIVE_CHAR *NameBuffer;
UINT32 Size;
ACPI_NAME Name;
ACPI_NAMESPACE_NODE *ChildNode;
ACPI_NAMESPACE_NODE *ParentNode;
FUNCTION_TRACE_PTR ("NsGetTablePathname", Node);
if (!AcpiGbl_RootNode || !Node)
{
/*
* If the name space has not been initialized,
* this function should not have been called.
*/
return_PTR (NULL);
}
ChildNode = Node->Child;
/* Calculate required buffer size based on depth below root */
Size = 1;
ParentNode = ChildNode;
while (ParentNode)
{
ParentNode = AcpiNsGetParentObject (ParentNode);
if (ParentNode)
{
Size += ACPI_NAME_SIZE;
}
}
/* Allocate a buffer to be returned to caller */
NameBuffer = ACPI_MEM_CALLOCATE (Size + 1);
if (!NameBuffer)
{
REPORT_ERROR (("NsGetTablePathname: allocation failure\n"));
return_PTR (NULL);
}
/* Store terminator byte, then build name backwards */
NameBuffer[Size] = '\0';
while ((Size > ACPI_NAME_SIZE) &&
AcpiNsGetParentObject (ChildNode))
{
Size -= ACPI_NAME_SIZE;
Name = AcpiNsFindParentName (ChildNode);
/* Put the name into the buffer */
MOVE_UNALIGNED32_TO_32 ((NameBuffer + Size), &Name);
ChildNode = AcpiNsGetParentObject (ChildNode);
}
NameBuffer[--Size] = AML_ROOT_PREFIX;
if (Size != 0)
{
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Bad pointer returned; size=%X\n", Size));
}
return_PTR (NameBuffer);
}
static acpi_status
acpi_ev_save_method_info (
acpi_handle obj_handle,
u32 level,
void *obj_desc,
void **return_value)
{
u32 gpe_number;
NATIVE_CHAR name[ACPI_NAME_SIZE + 1];
u8 type;
PROC_NAME ("Ev_save_method_info");
/* Extract the name from the object and convert to a string */
MOVE_UNALIGNED32_TO_32 (name, &((acpi_namespace_node *) obj_handle)->name);
name[ACPI_NAME_SIZE] = 0;
/*
* Edge/Level determination is based on the 2nd s8 of the method name
*/
if (name[1] == 'L') {
type = ACPI_EVENT_LEVEL_TRIGGERED;
}
else if (name[1] == 'E') {
type = ACPI_EVENT_EDGE_TRIGGERED;
}
else {
/* Unknown method type, just ignore it! */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Unknown GPE method type: %s (name not of form _Lnn or _Enn)\n",
name));
return (AE_OK);
}
/* Convert the last two characters of the name to the Gpe Number */
gpe_number = STRTOUL (&name[2], NULL, 16);
if (gpe_number == ACPI_UINT32_MAX) {
/* Conversion failed; invalid method, just ignore it */
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Could not extract GPE number from name: %s (name not of form _Lnn or _Enn)\n",
name));
return (AE_OK);
}
/* Ensure that we have a valid GPE number */
if (acpi_gbl_gpe_valid[gpe_number] == ACPI_GPE_INVALID) {
/* Not valid, all we can do here is ignore it */
return (AE_OK);
}
/*
* Now we can add this information to the Gpe_info block
* for use during dispatch of this GPE.
*/
acpi_gbl_gpe_info [gpe_number].type = type;
acpi_gbl_gpe_info [gpe_number].method_handle = obj_handle;
/*
* Enable the GPE (SCIs should be disabled at this point)
*/
acpi_hw_enable_gpe (gpe_number);
ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Registered GPE method %s as GPE number %X\n",
name, gpe_number));
return (AE_OK);
}