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authorLen Brown <len.brown@intel.com>2009-01-09 00:13:17 -0500
committerLen Brown <len.brown@intel.com>2009-01-09 03:30:47 -0500
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/executer/exfield.c
parent6620e0c49f577454b772fb381543d60ae53eb885 (diff)
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/executer/exfield.c')
-rw-r--r--drivers/acpi/executer/exfield.c340
1 files changed, 0 insertions, 340 deletions
diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c
deleted file mode 100644
index 7b6df031039..00000000000
--- a/drivers/acpi/executer/exfield.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/******************************************************************************
- *
- * Module Name: exfield - ACPI AML (p-code) execution - field manipulation
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/accommon.h>
-#include <acpi/acdispat.h>
-#include <acpi/acinterp.h>
-
-#define _COMPONENT ACPI_EXECUTER
-ACPI_MODULE_NAME("exfield")
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_read_data_from_field
- *
- * PARAMETERS: walk_state - Current execution state
- * obj_desc - The named field
- * ret_buffer_desc - Where the return data object is stored
- *
- * RETURN: Status
- *
- * DESCRIPTION: Read from a named field. Returns either an Integer or a
- * Buffer, depending on the size of the field.
- *
- ******************************************************************************/
-acpi_status
-acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object **ret_buffer_desc)
-{
- acpi_status status;
- union acpi_operand_object *buffer_desc;
- acpi_size length;
- void *buffer;
-
- ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc);
-
- /* Parameter validation */
-
- if (!obj_desc) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
- if (!ret_buffer_desc) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == 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);
- }
- }
- } else
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
- && (obj_desc->field.region_obj->region.space_id ==
- ACPI_ADR_SPACE_SMBUS)) {
- /*
- * This is an SMBus read. We must create a buffer to hold the data
- * and directly access the region handler.
- */
- buffer_desc =
- acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /*
- * Perform the read.
- * Note: Smbus protocol value is passed in upper 16-bits of Function
- */
- status = acpi_ex_access_region(obj_desc, 0,
- ACPI_CAST_PTR(acpi_integer,
- buffer_desc->
- buffer.pointer),
- ACPI_READ | (obj_desc->field.
- attribute << 16));
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
- goto exit;
- }
-
- /*
- * Allocate a buffer for the contents of the field.
- *
- * If the field is larger than the size of an acpi_integer, create
- * a BUFFER to hold it. Otherwise, use an INTEGER. This allows
- * the use of arithmetic operators on the returned value if the
- * field size is equal or smaller than an Integer.
- *
- * Note: Field.length is in bits.
- */
- length =
- (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length);
- if (length > acpi_gbl_integer_byte_width) {
-
- /* Field is too large for an Integer, create a Buffer instead */
-
- buffer_desc = acpi_ut_create_buffer_object(length);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
- buffer = buffer_desc->buffer.pointer;
- } else {
- /* Field will fit within an Integer (normal case) */
-
- buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- length = acpi_gbl_integer_byte_width;
- buffer_desc->integer.value = 0;
- buffer = &buffer_desc->integer.value;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n",
- obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer,
- (u32) length));
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n",
- obj_desc->common_field.bit_length,
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.base_byte_offset));
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /* Read from the field */
-
- status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length);
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- exit:
- if (ACPI_FAILURE(status)) {
- acpi_ut_remove_reference(buffer_desc);
- } else {
- *ret_buffer_desc = buffer_desc;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ex_write_data_to_field
- *
- * PARAMETERS: source_desc - Contains data to write
- * obj_desc - The named field
- * result_desc - Where the return value is returned, if any
- *
- * RETURN: Status
- *
- * DESCRIPTION: Write to a named field
- *
- ******************************************************************************/
-
-acpi_status
-acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
- union acpi_operand_object *obj_desc,
- union acpi_operand_object **result_desc)
-{
- acpi_status status;
- u32 length;
- void *buffer;
- union acpi_operand_object *buffer_desc;
-
- ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc);
-
- /* Parameter validation */
-
- if (!source_desc || !obj_desc) {
- return_ACPI_STATUS(AE_AML_NO_OPERAND);
- }
-
- if (ACPI_GET_OBJECT_TYPE(obj_desc) == 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);
- }
- }
- } else
- if ((ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REGION_FIELD)
- && (obj_desc->field.region_obj->region.space_id ==
- ACPI_ADR_SPACE_SMBUS)) {
- /*
- * This is an SMBus write. We will bypass the entire field mechanism
- * and handoff the buffer directly to the handler.
- *
- * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE).
- */
- if (ACPI_GET_OBJECT_TYPE(source_desc) != ACPI_TYPE_BUFFER) {
- ACPI_ERROR((AE_INFO,
- "SMBus write requires Buffer, found type %s",
- acpi_ut_get_object_type_name(source_desc)));
-
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) {
- ACPI_ERROR((AE_INFO,
- "SMBus write requires Buffer of length %X, found length %X",
- ACPI_SMBUS_BUFFER_SIZE,
- source_desc->buffer.length));
-
- return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
- }
-
- buffer_desc =
- acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE);
- if (!buffer_desc) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- buffer = buffer_desc->buffer.pointer;
- ACPI_MEMCPY(buffer, source_desc->buffer.pointer,
- ACPI_SMBUS_BUFFER_SIZE);
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /*
- * Perform the write (returns status and perhaps data in the
- * same buffer)
- * Note: SMBus protocol type is passed in upper 16-bits of Function.
- */
- status = acpi_ex_access_region(obj_desc, 0,
- (acpi_integer *) buffer,
- ACPI_WRITE | (obj_desc->field.
- attribute << 16));
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- *result_desc = buffer_desc;
- return_ACPI_STATUS(status);
- }
-
- /* Get a pointer to the data to be written */
-
- switch (ACPI_GET_OBJECT_TYPE(source_desc)) {
- case ACPI_TYPE_INTEGER:
- buffer = &source_desc->integer.value;
- length = sizeof(source_desc->integer.value);
- break;
-
- case ACPI_TYPE_BUFFER:
- buffer = source_desc->buffer.pointer;
- length = source_desc->buffer.length;
- break;
-
- case ACPI_TYPE_STRING:
- buffer = source_desc->string.pointer;
- length = source_desc->string.length;
- break;
-
- default:
- return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n",
- source_desc,
- acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE
- (source_desc)),
- ACPI_GET_OBJECT_TYPE(source_desc), buffer, length));
-
- ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
- "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n",
- obj_desc,
- acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)),
- ACPI_GET_OBJECT_TYPE(obj_desc),
- obj_desc->common_field.bit_length,
- obj_desc->common_field.start_field_bit_offset,
- obj_desc->common_field.base_byte_offset));
-
- /* Lock entire transaction if requested */
-
- acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags);
-
- /* Write to the field */
-
- status = acpi_ex_insert_into_field(obj_desc, buffer, length);
- acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
-
- return_ACPI_STATUS(status);
-}