u8 *
acpi_ps_get_next_package_end (
ACPI_PARSE_STATE *parser_state)
{
u8 *start = parser_state->aml;
NATIVE_UINT length;
length = (NATIVE_UINT) acpi_ps_get_next_package_length (parser_state);
return (start + length); /* end of package */
}
u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state)
{
u8 *start = parser_state->aml;
acpi_native_uint length;
ACPI_FUNCTION_TRACE("ps_get_next_package_end");
/* Function below changes parser_state->Aml */
length =
(acpi_native_uint) acpi_ps_get_next_package_length(parser_state);
return_PTR(start + length); /* end of package */
}
static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
*parser_state)
{
u32 aml_offset = (u32)
ACPI_PTR_DIFF(parser_state->aml,
parser_state->aml_start);
union acpi_parse_object *field;
u16 opcode;
u32 name;
ACPI_FUNCTION_TRACE("ps_get_next_field");
/* Determine field type */
switch (ACPI_GET8(parser_state->aml)) {
default:
opcode = AML_INT_NAMEDFIELD_OP;
break;
case 0x00:
opcode = AML_INT_RESERVEDFIELD_OP;
parser_state->aml++;
break;
case 0x01:
opcode = AML_INT_ACCESSFIELD_OP;
parser_state->aml++;
break;
}
/* Allocate a new field op */
field = acpi_ps_alloc_op(opcode);
if (!field) {
return_PTR(NULL);
}
field->common.aml_offset = aml_offset;
/* Decode the field type */
switch (opcode) {
case AML_INT_NAMEDFIELD_OP:
/* Get the 4-character name */
ACPI_MOVE_32_TO_32(&name, parser_state->aml);
acpi_ps_set_name(field, name);
parser_state->aml += ACPI_NAME_SIZE;
/* Get the length which is encoded as a package length */
field->common.value.size =
acpi_ps_get_next_package_length(parser_state);
break;
case AML_INT_RESERVEDFIELD_OP:
/* Get the length which is encoded as a package length */
field->common.value.size =
acpi_ps_get_next_package_length(parser_state);
break;
case AML_INT_ACCESSFIELD_OP:
/*
* Get access_type and access_attrib and merge into the field Op
* access_type is first operand, access_attribute is second
*/
field->common.value.integer =
(ACPI_GET8(parser_state->aml) << 8);
parser_state->aml++;
field->common.value.integer |= ACPI_GET8(parser_state->aml);
parser_state->aml++;
break;
default:
/* Opcode was set in previous switch */
break;
}
return_PTR(field);
}
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);
}
