* POSSIBILITY OF SUCH DAMAGES.
*/
-
#include <acpi/acpi.h>
#include <acpi/acinterp.h>
#include <acpi/amlcode.h>
#include <acpi/acevents.h>
#include <acpi/acdispat.h>
-
#define _COMPONENT ACPI_EXECUTER
- ACPI_MODULE_NAME ("exfldio")
+ACPI_MODULE_NAME("exfldio")
/* Local prototypes */
-
static acpi_status
-acpi_ex_field_datum_io (
- union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer *value,
- u32 read_write);
+acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 read_write);
static u8
-acpi_ex_register_overflow (
- union acpi_operand_object *obj_desc,
- acpi_integer value);
+acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
+ acpi_integer value);
static acpi_status
-acpi_ex_setup_region (
- union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset);
-
+acpi_ex_setup_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset);
/*******************************************************************************
*
******************************************************************************/
static acpi_status
-acpi_ex_setup_region (
- union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset)
+acpi_ex_setup_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset)
{
- acpi_status status = AE_OK;
- union acpi_operand_object *rgn_desc;
-
-
- ACPI_FUNCTION_TRACE_U32 ("ex_setup_region", field_datum_byte_offset);
+ acpi_status status = AE_OK;
+ union acpi_operand_object *rgn_desc;
+ ACPI_FUNCTION_TRACE_U32("ex_setup_region", field_datum_byte_offset);
rgn_desc = obj_desc->common_field.region_obj;
/* We must have a valid region */
- if (ACPI_GET_OBJECT_TYPE (rgn_desc) != ACPI_TYPE_REGION) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Needed Region, found type %X (%s)\n",
- ACPI_GET_OBJECT_TYPE (rgn_desc),
- acpi_ut_get_object_type_name (rgn_desc)));
+ if (ACPI_GET_OBJECT_TYPE(rgn_desc) != ACPI_TYPE_REGION) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Needed Region, found type %X (%s)\n",
+ ACPI_GET_OBJECT_TYPE(rgn_desc),
+ acpi_ut_get_object_type_name(rgn_desc)));
- return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
+ return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
}
/*
* evaluate them now and save the results.
*/
if (!(rgn_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_region_arguments (rgn_desc);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ds_get_region_arguments(rgn_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
}
if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) {
/* SMBus has a non-linear address space */
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
#ifdef ACPI_UNDER_DEVELOPMENT
/*
* If the Field access is any_acc, we can now compute the optimal
* access (because we know know the length of the parent region)
*/
if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
}
#endif
* (Region length is specified in bytes)
*/
if (rgn_desc->region.length < (obj_desc->common_field.base_byte_offset +
- field_datum_byte_offset +
- obj_desc->common_field.access_byte_width)) {
+ field_datum_byte_offset +
+ obj_desc->common_field.
+ access_byte_width)) {
if (acpi_gbl_enable_interpreter_slack) {
/*
* Slack mode only: We will go ahead and allow access to this
* field if it is within the region length rounded up to the next
* access width boundary.
*/
- if (ACPI_ROUND_UP (rgn_desc->region.length,
- obj_desc->common_field.access_byte_width) >=
- (obj_desc->common_field.base_byte_offset +
- (acpi_native_uint) obj_desc->common_field.access_byte_width +
- field_datum_byte_offset)) {
- return_ACPI_STATUS (AE_OK);
+ if (ACPI_ROUND_UP(rgn_desc->region.length,
+ obj_desc->common_field.
+ access_byte_width) >=
+ (obj_desc->common_field.base_byte_offset +
+ (acpi_native_uint) obj_desc->common_field.
+ access_byte_width + field_datum_byte_offset)) {
+ return_ACPI_STATUS(AE_OK);
}
}
- if (rgn_desc->region.length < obj_desc->common_field.access_byte_width) {
+ if (rgn_desc->region.length <
+ obj_desc->common_field.access_byte_width) {
/*
* This is the case where the access_type (acc_word, etc.) is wider
* than the region itself. For example, a region of length one
* byte, and a field with Dword access specified.
*/
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)\n",
- acpi_ut_get_node_name (obj_desc->common_field.node),
- obj_desc->common_field.access_byte_width,
- acpi_ut_get_node_name (rgn_desc->region.node),
- rgn_desc->region.length));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Field [%4.4s] access width (%d bytes) too large for region [%4.4s] (length %X)\n",
+ acpi_ut_get_node_name(obj_desc->
+ common_field.
+ node),
+ obj_desc->common_field.
+ access_byte_width,
+ acpi_ut_get_node_name(rgn_desc->
+ region.node),
+ rgn_desc->region.length));
}
/*
* Offset rounded up to next multiple of field width
* exceeds region length, indicate an error
*/
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)\n",
- acpi_ut_get_node_name (obj_desc->common_field.node),
- obj_desc->common_field.base_byte_offset,
- field_datum_byte_offset, obj_desc->common_field.access_byte_width,
- acpi_ut_get_node_name (rgn_desc->region.node),
- rgn_desc->region.length));
-
- return_ACPI_STATUS (AE_AML_REGION_LIMIT);
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Field [%4.4s] Base+Offset+Width %X+%X+%X is beyond end of region [%4.4s] (length %X)\n",
+ acpi_ut_get_node_name(obj_desc->common_field.
+ node),
+ obj_desc->common_field.base_byte_offset,
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width,
+ acpi_ut_get_node_name(rgn_desc->region.node),
+ rgn_desc->region.length));
+
+ return_ACPI_STATUS(AE_AML_REGION_LIMIT);
}
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_access_region
******************************************************************************/
acpi_status
-acpi_ex_access_region (
- union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer *value,
- u32 function)
+acpi_ex_access_region(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 function)
{
- acpi_status status;
- union acpi_operand_object *rgn_desc;
- acpi_physical_address address;
-
-
- ACPI_FUNCTION_TRACE ("ex_access_region");
+ acpi_status status;
+ union acpi_operand_object *rgn_desc;
+ acpi_physical_address address;
+ ACPI_FUNCTION_TRACE("ex_access_region");
/*
* Ensure that the region operands are fully evaluated and verify
* the validity of the request
*/
- status = acpi_ex_setup_region (obj_desc, field_datum_byte_offset);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ex_setup_region(obj_desc, field_datum_byte_offset);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/*
*/
rgn_desc = obj_desc->common_field.region_obj;
address = rgn_desc->region.address +
- obj_desc->common_field.base_byte_offset +
- field_datum_byte_offset;
+ obj_desc->common_field.base_byte_offset + field_datum_byte_offset;
if ((function & ACPI_IO_MASK) == ACPI_READ) {
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[READ]"));
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD, "[WRITE]"));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[READ]"));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, "[WRITE]"));
}
- ACPI_DEBUG_PRINT_RAW ((ACPI_DB_BFIELD,
- " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n",
- acpi_ut_get_region_name (rgn_desc->region.space_id),
- rgn_desc->region.space_id,
- obj_desc->common_field.access_byte_width,
- obj_desc->common_field.base_byte_offset,
- field_datum_byte_offset,
- ACPI_FORMAT_UINT64 (address)));
+ ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD,
+ " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n",
+ acpi_ut_get_region_name(rgn_desc->region.
+ space_id),
+ rgn_desc->region.space_id,
+ obj_desc->common_field.access_byte_width,
+ obj_desc->common_field.base_byte_offset,
+ field_datum_byte_offset,
+ ACPI_FORMAT_UINT64(address)));
/* Invoke the appropriate address_space/op_region handler */
- status = acpi_ev_address_space_dispatch (rgn_desc, function,
- address,
- ACPI_MUL_8 (obj_desc->common_field.access_byte_width), value);
+ status = acpi_ev_address_space_dispatch(rgn_desc, function,
+ address,
+ ACPI_MUL_8(obj_desc->
+ common_field.
+ access_byte_width),
+ value);
- if (ACPI_FAILURE (status)) {
+ if (ACPI_FAILURE(status)) {
if (status == AE_NOT_IMPLEMENTED) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Region %s(%X) not implemented\n",
- acpi_ut_get_region_name (rgn_desc->region.space_id),
- rgn_desc->region.space_id));
- }
- else if (status == AE_NOT_EXIST) {
- ACPI_REPORT_ERROR ((
- "Region %s(%X) has no handler\n",
- acpi_ut_get_region_name (rgn_desc->region.space_id),
- rgn_desc->region.space_id));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Region %s(%X) not implemented\n",
+ acpi_ut_get_region_name(rgn_desc->
+ region.
+ space_id),
+ rgn_desc->region.space_id));
+ } else if (status == AE_NOT_EXIST) {
+ ACPI_REPORT_ERROR(("Region %s(%X) has no handler\n",
+ acpi_ut_get_region_name(rgn_desc->
+ region.
+ space_id),
+ rgn_desc->region.space_id));
}
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_register_overflow
******************************************************************************/
static u8
-acpi_ex_register_overflow (
- union acpi_operand_object *obj_desc,
- acpi_integer value)
+acpi_ex_register_overflow(union acpi_operand_object *obj_desc,
+ acpi_integer value)
{
if (obj_desc->common_field.bit_length >= ACPI_INTEGER_BIT_SIZE) {
return (FALSE);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_field_datum_io
******************************************************************************/
static acpi_status
-acpi_ex_field_datum_io (
- union acpi_operand_object *obj_desc,
- u32 field_datum_byte_offset,
- acpi_integer *value,
- u32 read_write)
+acpi_ex_field_datum_io(union acpi_operand_object *obj_desc,
+ u32 field_datum_byte_offset,
+ acpi_integer * value, u32 read_write)
{
- acpi_status status;
- acpi_integer local_value;
-
-
- ACPI_FUNCTION_TRACE_U32 ("ex_field_datum_io", field_datum_byte_offset);
+ acpi_status status;
+ acpi_integer local_value;
+ ACPI_FUNCTION_TRACE_U32("ex_field_datum_io", field_datum_byte_offset);
if (read_write == ACPI_READ) {
if (!value) {
* index_field - Write to an Index Register, then read/write from/to a
* Data Register
*/
- switch (ACPI_GET_OBJECT_TYPE (obj_desc)) {
+ switch (ACPI_GET_OBJECT_TYPE(obj_desc)) {
case ACPI_TYPE_BUFFER_FIELD:
/*
* If the buffer_field arguments have not been previously evaluated,
* evaluate them now and save the results.
*/
if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
- status = acpi_ds_get_buffer_field_arguments (obj_desc);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ds_get_buffer_field_arguments(obj_desc);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
}
* Copy the data from the source buffer.
* Length is the field width in bytes.
*/
- ACPI_MEMCPY (value,
- (obj_desc->buffer_field.buffer_obj)->buffer.pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width);
- }
- else {
+ ACPI_MEMCPY(value,
+ (obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width);
+ } else {
/*
* Copy the data to the target buffer.
* Length is the field width in bytes.
*/
- ACPI_MEMCPY ((obj_desc->buffer_field.buffer_obj)->buffer.pointer +
- obj_desc->buffer_field.base_byte_offset +
- field_datum_byte_offset,
- value, obj_desc->common_field.access_byte_width);
+ ACPI_MEMCPY((obj_desc->buffer_field.buffer_obj)->buffer.
+ pointer +
+ obj_desc->buffer_field.base_byte_offset +
+ field_datum_byte_offset, value,
+ obj_desc->common_field.access_byte_width);
}
status = AE_OK;
break;
-
case ACPI_TYPE_LOCAL_BANK_FIELD:
/*
* Ensure that the bank_value is not beyond the capacity of
* the register
*/
- if (acpi_ex_register_overflow (obj_desc->bank_field.bank_obj,
- (acpi_integer) obj_desc->bank_field.value)) {
- return_ACPI_STATUS (AE_AML_REGISTER_LIMIT);
+ if (acpi_ex_register_overflow(obj_desc->bank_field.bank_obj,
+ (acpi_integer) obj_desc->
+ bank_field.value)) {
+ return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
}
/*
* For bank_fields, we must write the bank_value to the bank_register
* (itself a region_field) before we can access the data.
*/
- status = acpi_ex_insert_into_field (obj_desc->bank_field.bank_obj,
- &obj_desc->bank_field.value,
- sizeof (obj_desc->bank_field.value));
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ex_insert_into_field(obj_desc->bank_field.bank_obj,
+ &obj_desc->bank_field.value,
+ sizeof(obj_desc->bank_field.
+ value));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/*
/*lint -fallthrough */
-
case ACPI_TYPE_LOCAL_REGION_FIELD:
/*
* For simple region_fields, we just directly access the owning
* Operation Region.
*/
- status = acpi_ex_access_region (obj_desc, field_datum_byte_offset, value,
- read_write);
+ status =
+ acpi_ex_access_region(obj_desc, field_datum_byte_offset,
+ value, read_write);
break;
-
case ACPI_TYPE_LOCAL_INDEX_FIELD:
-
/*
* Ensure that the index_value is not beyond the capacity of
* the register
*/
- if (acpi_ex_register_overflow (obj_desc->index_field.index_obj,
- (acpi_integer) obj_desc->index_field.value)) {
- return_ACPI_STATUS (AE_AML_REGISTER_LIMIT);
+ if (acpi_ex_register_overflow(obj_desc->index_field.index_obj,
+ (acpi_integer) obj_desc->
+ index_field.value)) {
+ return_ACPI_STATUS(AE_AML_REGISTER_LIMIT);
}
/* Write the index value to the index_register (itself a region_field) */
field_datum_byte_offset += obj_desc->index_field.value;
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
- "Write to Index Register: Value %8.8X\n",
- field_datum_byte_offset));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Write to Index Register: Value %8.8X\n",
+ field_datum_byte_offset));
- status = acpi_ex_insert_into_field (obj_desc->index_field.index_obj,
- &field_datum_byte_offset,
- sizeof (field_datum_byte_offset));
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ex_insert_into_field(obj_desc->index_field.index_obj,
+ &field_datum_byte_offset,
+ sizeof(field_datum_byte_offset));
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
- "I/O to Data Register: value_ptr %p\n",
- value));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "I/O to Data Register: value_ptr %p\n",
+ value));
if (read_write == ACPI_READ) {
/* Read the datum from the data_register */
- status = acpi_ex_extract_from_field (obj_desc->index_field.data_obj,
- value, sizeof (acpi_integer));
- }
- else {
+ status =
+ acpi_ex_extract_from_field(obj_desc->index_field.
+ data_obj, value,
+ sizeof(acpi_integer));
+ } else {
/* Write the datum to the data_register */
- status = acpi_ex_insert_into_field (obj_desc->index_field.data_obj,
- value, sizeof (acpi_integer));
+ status =
+ acpi_ex_insert_into_field(obj_desc->index_field.
+ data_obj, value,
+ sizeof(acpi_integer));
}
break;
-
default:
- ACPI_REPORT_ERROR (("Wrong object type in field I/O %X\n",
- ACPI_GET_OBJECT_TYPE (obj_desc)));
+ ACPI_REPORT_ERROR(("Wrong object type in field I/O %X\n",
+ ACPI_GET_OBJECT_TYPE(obj_desc)));
status = AE_AML_INTERNAL;
break;
}
- if (ACPI_SUCCESS (status)) {
+ if (ACPI_SUCCESS(status)) {
if (read_write == ACPI_READ) {
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
- "Value Read %8.8X%8.8X, Width %d\n",
- ACPI_FORMAT_UINT64 (*value),
- obj_desc->common_field.access_byte_width));
- }
- else {
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
- "Value Written %8.8X%8.8X, Width %d\n",
- ACPI_FORMAT_UINT64 (*value),
- obj_desc->common_field.access_byte_width));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Value Read %8.8X%8.8X, Width %d\n",
+ ACPI_FORMAT_UINT64(*value),
+ obj_desc->common_field.
+ access_byte_width));
+ } else {
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Value Written %8.8X%8.8X, Width %d\n",
+ ACPI_FORMAT_UINT64(*value),
+ obj_desc->common_field.
+ access_byte_width));
}
}
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_write_with_update_rule
******************************************************************************/
acpi_status
-acpi_ex_write_with_update_rule (
- union acpi_operand_object *obj_desc,
- acpi_integer mask,
- acpi_integer field_value,
- u32 field_datum_byte_offset)
+acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc,
+ acpi_integer mask,
+ acpi_integer field_value,
+ u32 field_datum_byte_offset)
{
- acpi_status status = AE_OK;
- acpi_integer merged_value;
- acpi_integer current_value;
-
-
- ACPI_FUNCTION_TRACE_U32 ("ex_write_with_update_rule", mask);
+ acpi_status status = AE_OK;
+ acpi_integer merged_value;
+ acpi_integer current_value;
+ ACPI_FUNCTION_TRACE_U32("ex_write_with_update_rule", mask);
/* Start with the new bits */
if (mask != ACPI_INTEGER_MAX) {
/* Decode the update rule */
- switch (obj_desc->common_field.field_flags & AML_FIELD_UPDATE_RULE_MASK) {
+ switch (obj_desc->common_field.
+ field_flags & AML_FIELD_UPDATE_RULE_MASK) {
case AML_FIELD_UPDATE_PRESERVE:
/*
* Check if update rule needs to be applied (not if mask is all
* ones) The left shift drops the bits we want to ignore.
*/
- if ((~mask << (ACPI_MUL_8 (sizeof (mask)) -
- ACPI_MUL_8 (obj_desc->common_field.access_byte_width))) != 0) {
+ if ((~mask << (ACPI_MUL_8(sizeof(mask)) -
+ ACPI_MUL_8(obj_desc->common_field.
+ access_byte_width))) != 0) {
/*
* Read the current contents of the byte/word/dword containing
* the field, and merge with the new field value.
*/
- status = acpi_ex_field_datum_io (obj_desc, field_datum_byte_offset,
- ¤t_value, ACPI_READ);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ex_field_datum_io(obj_desc,
+ field_datum_byte_offset,
+ ¤t_value,
+ ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
merged_value |= (current_value & ~mask);
default:
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "write_with_update_rule: Unknown update_rule setting: %X\n",
- (obj_desc->common_field.field_flags & AML_FIELD_UPDATE_RULE_MASK)));
- return_ACPI_STATUS (AE_AML_OPERAND_VALUE);
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "write_with_update_rule: Unknown update_rule setting: %X\n",
+ (obj_desc->common_field.
+ field_flags &
+ AML_FIELD_UPDATE_RULE_MASK)));
+ return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
}
}
- ACPI_DEBUG_PRINT ((ACPI_DB_BFIELD,
- "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n",
- ACPI_FORMAT_UINT64 (mask),
- field_datum_byte_offset,
- obj_desc->common_field.access_byte_width,
- ACPI_FORMAT_UINT64 (field_value),
- ACPI_FORMAT_UINT64 (merged_value)));
+ ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
+ "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n",
+ ACPI_FORMAT_UINT64(mask),
+ field_datum_byte_offset,
+ obj_desc->common_field.access_byte_width,
+ ACPI_FORMAT_UINT64(field_value),
+ ACPI_FORMAT_UINT64(merged_value)));
/* Write the merged value */
- status = acpi_ex_field_datum_io (obj_desc, field_datum_byte_offset,
- &merged_value, ACPI_WRITE);
+ status = acpi_ex_field_datum_io(obj_desc, field_datum_byte_offset,
+ &merged_value, ACPI_WRITE);
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_extract_from_field
******************************************************************************/
acpi_status
-acpi_ex_extract_from_field (
- union acpi_operand_object *obj_desc,
- void *buffer,
- u32 buffer_length)
+acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
+ void *buffer, u32 buffer_length)
{
- acpi_status status;
- acpi_integer raw_datum;
- acpi_integer merged_datum;
- u32 field_offset = 0;
- u32 buffer_offset = 0;
- u32 buffer_tail_bits;
- u32 datum_count;
- u32 field_datum_count;
- u32 i;
-
-
- ACPI_FUNCTION_TRACE ("ex_extract_from_field");
-
+ acpi_status status;
+ acpi_integer raw_datum;
+ acpi_integer merged_datum;
+ u32 field_offset = 0;
+ u32 buffer_offset = 0;
+ u32 buffer_tail_bits;
+ u32 datum_count;
+ u32 field_datum_count;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE("ex_extract_from_field");
/* Validate target buffer and clear it */
- if (buffer_length < ACPI_ROUND_BITS_UP_TO_BYTES (
- obj_desc->common_field.bit_length)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Field size %X (bits) is too large for buffer (%X)\n",
- obj_desc->common_field.bit_length, buffer_length));
+ if (buffer_length <
+ ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Field size %X (bits) is too large for buffer (%X)\n",
+ obj_desc->common_field.bit_length,
+ buffer_length));
- return_ACPI_STATUS (AE_BUFFER_OVERFLOW);
+ return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
}
- ACPI_MEMSET (buffer, 0, buffer_length);
+ ACPI_MEMSET(buffer, 0, buffer_length);
/* Compute the number of datums (access width data items) */
- datum_count = ACPI_ROUND_UP_TO (
- obj_desc->common_field.bit_length,
- obj_desc->common_field.access_bit_width);
- field_datum_count = ACPI_ROUND_UP_TO (
- obj_desc->common_field.bit_length +
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.access_bit_width);
+ datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+ obj_desc->common_field.access_bit_width);
+ field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
+ obj_desc->common_field.
+ start_field_bit_offset,
+ obj_desc->common_field.
+ access_bit_width);
/* Priming read from the field */
- status = acpi_ex_field_datum_io (obj_desc, field_offset, &raw_datum, ACPI_READ);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status =
+ acpi_ex_field_datum_io(obj_desc, field_offset, &raw_datum,
+ ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
- merged_datum = raw_datum >> obj_desc->common_field.start_field_bit_offset;
+ merged_datum =
+ raw_datum >> obj_desc->common_field.start_field_bit_offset;
/* Read the rest of the field */
/* Get next input datum from the field */
field_offset += obj_desc->common_field.access_byte_width;
- status = acpi_ex_field_datum_io (obj_desc, field_offset,
- &raw_datum, ACPI_READ);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ex_field_datum_io(obj_desc, field_offset,
+ &raw_datum, ACPI_READ);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/* Merge with previous datum if necessary */
merged_datum |= raw_datum <<
- (obj_desc->common_field.access_bit_width -
- obj_desc->common_field.start_field_bit_offset);
+ (obj_desc->common_field.access_bit_width -
+ obj_desc->common_field.start_field_bit_offset);
if (i == datum_count) {
break;
/* Write merged datum to target buffer */
- ACPI_MEMCPY (((char *) buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
buffer_offset += obj_desc->common_field.access_byte_width;
- merged_datum = raw_datum >> obj_desc->common_field.start_field_bit_offset;
+ merged_datum =
+ raw_datum >> obj_desc->common_field.start_field_bit_offset;
}
/* Mask off any extra bits in the last datum */
buffer_tail_bits = obj_desc->common_field.bit_length %
- obj_desc->common_field.access_bit_width;
+ obj_desc->common_field.access_bit_width;
if (buffer_tail_bits) {
- merged_datum &= ACPI_MASK_BITS_ABOVE (buffer_tail_bits);
+ merged_datum &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
}
/* Write the last datum to the buffer */
- ACPI_MEMCPY (((char *) buffer) + buffer_offset, &merged_datum,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ ACPI_MEMCPY(((char *)buffer) + buffer_offset, &merged_datum,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
- return_ACPI_STATUS (AE_OK);
+ return_ACPI_STATUS(AE_OK);
}
-
/*******************************************************************************
*
* FUNCTION: acpi_ex_insert_into_field
******************************************************************************/
acpi_status
-acpi_ex_insert_into_field (
- union acpi_operand_object *obj_desc,
- void *buffer,
- u32 buffer_length)
+acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
+ void *buffer, u32 buffer_length)
{
- acpi_status status;
- acpi_integer mask;
- acpi_integer merged_datum;
- acpi_integer raw_datum = 0;
- u32 field_offset = 0;
- u32 buffer_offset = 0;
- u32 buffer_tail_bits;
- u32 datum_count;
- u32 field_datum_count;
- u32 i;
-
-
- ACPI_FUNCTION_TRACE ("ex_insert_into_field");
-
+ acpi_status status;
+ acpi_integer mask;
+ acpi_integer merged_datum;
+ acpi_integer raw_datum = 0;
+ u32 field_offset = 0;
+ u32 buffer_offset = 0;
+ u32 buffer_tail_bits;
+ u32 datum_count;
+ u32 field_datum_count;
+ u32 i;
+
+ ACPI_FUNCTION_TRACE("ex_insert_into_field");
/* Validate input buffer */
- if (buffer_length < ACPI_ROUND_BITS_UP_TO_BYTES (
- obj_desc->common_field.bit_length)) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Field size %X (bits) is too large for buffer (%X)\n",
- obj_desc->common_field.bit_length, buffer_length));
+ if (buffer_length <
+ ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Field size %X (bits) is too large for buffer (%X)\n",
+ obj_desc->common_field.bit_length,
+ buffer_length));
- return_ACPI_STATUS (AE_BUFFER_OVERFLOW);
+ return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
}
/* Compute the number of datums (access width data items) */
- mask = ACPI_MASK_BITS_BELOW (obj_desc->common_field.start_field_bit_offset);
- datum_count = ACPI_ROUND_UP_TO (obj_desc->common_field.bit_length,
- obj_desc->common_field.access_bit_width);
- field_datum_count = ACPI_ROUND_UP_TO (obj_desc->common_field.bit_length +
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.access_bit_width);
+ mask =
+ ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset);
+ datum_count =
+ ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
+ obj_desc->common_field.access_bit_width);
+ field_datum_count =
+ ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length +
+ obj_desc->common_field.start_field_bit_offset,
+ obj_desc->common_field.access_bit_width);
/* Get initial Datum from the input buffer */
- ACPI_MEMCPY (&raw_datum, buffer,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
+ ACPI_MEMCPY(&raw_datum, buffer,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
- merged_datum = raw_datum << obj_desc->common_field.start_field_bit_offset;
+ merged_datum =
+ raw_datum << obj_desc->common_field.start_field_bit_offset;
/* Write the entire field */
/* Write merged datum to the target field */
merged_datum &= mask;
- status = acpi_ex_write_with_update_rule (obj_desc, mask,
- merged_datum, field_offset);
- if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ status = acpi_ex_write_with_update_rule(obj_desc, mask,
+ merged_datum,
+ field_offset);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
}
/* Start new output datum by merging with previous input datum */
field_offset += obj_desc->common_field.access_byte_width;
merged_datum = raw_datum >>
- (obj_desc->common_field.access_bit_width -
- obj_desc->common_field.start_field_bit_offset);
+ (obj_desc->common_field.access_bit_width -
+ obj_desc->common_field.start_field_bit_offset);
mask = ACPI_INTEGER_MAX;
if (i == datum_count) {
/* Get the next input datum from the buffer */
buffer_offset += obj_desc->common_field.access_byte_width;
- ACPI_MEMCPY (&raw_datum, ((char *) buffer) + buffer_offset,
- ACPI_MIN(obj_desc->common_field.access_byte_width,
- buffer_length - buffer_offset));
- merged_datum |= raw_datum << obj_desc->common_field.start_field_bit_offset;
+ ACPI_MEMCPY(&raw_datum, ((char *)buffer) + buffer_offset,
+ ACPI_MIN(obj_desc->common_field.access_byte_width,
+ buffer_length - buffer_offset));
+ merged_datum |=
+ raw_datum << obj_desc->common_field.start_field_bit_offset;
}
/* Mask off any extra bits in the last datum */
buffer_tail_bits = (obj_desc->common_field.bit_length +
- obj_desc->common_field.start_field_bit_offset) %
- obj_desc->common_field.access_bit_width;
+ obj_desc->common_field.start_field_bit_offset) %
+ obj_desc->common_field.access_bit_width;
if (buffer_tail_bits) {
- mask &= ACPI_MASK_BITS_ABOVE (buffer_tail_bits);
+ mask &= ACPI_MASK_BITS_ABOVE(buffer_tail_bits);
}
/* Write the last datum to the field */
merged_datum &= mask;
- status = acpi_ex_write_with_update_rule (obj_desc,
- mask, merged_datum, field_offset);
+ status = acpi_ex_write_with_update_rule(obj_desc,
+ mask, merged_datum,
+ field_offset);
- return_ACPI_STATUS (status);
+ return_ACPI_STATUS(status);
}
-
-
git.samba.org / sfrench / cifs-2.6.git / blobdiff