2005-04-16 22:20:36 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* Module Name: rsxface - Public interfaces to the resource manager
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
/*
|
2017-02-08 03:00:08 +00:00
|
|
|
* Copyright (C) 2000 - 2017, Intel Corp.
|
2005-04-16 22:20:36 +00:00
|
|
|
* 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.
|
|
|
|
*/
|
|
|
|
|
2013-10-29 01:29:51 +00:00
|
|
|
#define EXPORT_ACPI_INTERFACES
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
#include <acpi/acpi.h>
|
2009-01-09 05:30:03 +00:00
|
|
|
#include "accommon.h"
|
|
|
|
#include "acresrc.h"
|
|
|
|
#include "acnamesp.h"
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
#define _COMPONENT ACPI_RESOURCES
|
2005-08-05 04:44:28 +00:00
|
|
|
ACPI_MODULE_NAME("rsxface")
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-04-19 02:49:35 +00:00
|
|
|
/* Local macros for 16,32-bit to 64-bit conversion */
|
|
|
|
#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field)
|
2015-12-29 05:54:36 +00:00
|
|
|
#define ACPI_COPY_ADDRESS(out, in) \
|
2005-04-19 02:49:35 +00:00
|
|
|
ACPI_COPY_FIELD(out, in, resource_type); \
|
|
|
|
ACPI_COPY_FIELD(out, in, producer_consumer); \
|
|
|
|
ACPI_COPY_FIELD(out, in, decode); \
|
|
|
|
ACPI_COPY_FIELD(out, in, min_address_fixed); \
|
|
|
|
ACPI_COPY_FIELD(out, in, max_address_fixed); \
|
2005-10-21 04:00:00 +00:00
|
|
|
ACPI_COPY_FIELD(out, in, info); \
|
2015-01-26 08:58:56 +00:00
|
|
|
ACPI_COPY_FIELD(out, in, address.granularity); \
|
|
|
|
ACPI_COPY_FIELD(out, in, address.minimum); \
|
|
|
|
ACPI_COPY_FIELD(out, in, address.maximum); \
|
|
|
|
ACPI_COPY_FIELD(out, in, address.translation_offset); \
|
|
|
|
ACPI_COPY_FIELD(out, in, address.address_length); \
|
2005-04-19 02:49:35 +00:00
|
|
|
ACPI_COPY_FIELD(out, in, resource_source);
|
2005-11-17 18:07:00 +00:00
|
|
|
/* Local prototypes */
|
|
|
|
static acpi_status
|
|
|
|
acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context);
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
static acpi_status
|
|
|
|
acpi_rs_validate_parameters(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *buffer,
|
|
|
|
struct acpi_namespace_node **return_node);
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_rs_validate_parameters
|
|
|
|
*
|
|
|
|
* PARAMETERS: device_handle - Handle to a device
|
2012-07-12 01:40:10 +00:00
|
|
|
* buffer - Pointer to a data buffer
|
2006-05-26 20:36:00 +00:00
|
|
|
* return_node - Pointer to where the device node is returned
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Common parameter validation for resource interfaces
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
static acpi_status
|
|
|
|
acpi_rs_validate_parameters(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *buffer,
|
|
|
|
struct acpi_namespace_node **return_node)
|
|
|
|
{
|
|
|
|
acpi_status status;
|
|
|
|
struct acpi_namespace_node *node;
|
|
|
|
|
|
|
|
ACPI_FUNCTION_TRACE(rs_validate_parameters);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Must have a valid handle to an ACPI device
|
|
|
|
*/
|
|
|
|
if (!device_handle) {
|
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
2009-12-11 06:57:00 +00:00
|
|
|
node = acpi_ns_validate_handle(device_handle);
|
2006-05-26 20:36:00 +00:00
|
|
|
if (!node) {
|
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node->type != ACPI_TYPE_DEVICE) {
|
|
|
|
return_ACPI_STATUS(AE_TYPE);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Validate the user buffer object
|
|
|
|
*
|
|
|
|
* if there is a non-zero buffer length we also need a valid pointer in
|
|
|
|
* the buffer. If it's a zero buffer length, we'll be returning the
|
|
|
|
* needed buffer size (later), so keep going.
|
|
|
|
*/
|
|
|
|
status = acpi_ut_validate_buffer(buffer);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
*return_node = node;
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
|
|
}
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_get_irq_routing_table
|
|
|
|
*
|
2006-05-26 20:36:00 +00:00
|
|
|
* PARAMETERS: device_handle - Handle to the Bus device we are querying
|
|
|
|
* ret_buffer - Pointer to a buffer to receive the
|
2005-04-16 22:20:36 +00:00
|
|
|
* current resources for the device
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: This function is called to get the IRQ routing table for a
|
2006-05-26 20:36:00 +00:00
|
|
|
* specific bus. The caller must first acquire a handle for the
|
|
|
|
* desired bus. The routine table is placed in the buffer pointed
|
2005-04-16 22:20:36 +00:00
|
|
|
* to by the ret_buffer variable parameter.
|
|
|
|
*
|
|
|
|
* If the function fails an appropriate status will be returned
|
|
|
|
* and the value of ret_buffer is undefined.
|
|
|
|
*
|
|
|
|
* This function attempts to execute the _PRT method contained in
|
|
|
|
* the object indicated by the passed device_handle.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
2005-11-17 18:07:00 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
acpi_status
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_get_irq_routing_table(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *ret_buffer)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_status status;
|
2006-05-26 20:36:00 +00:00
|
|
|
struct acpi_namespace_node *node;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 21:15:00 +00:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Validate parameters then dispatch to internal routine */
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
|
2005-08-05 04:44:28 +00:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_get_prt_method_data(node, ret_buffer);
|
2005-08-05 04:44:28 +00:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table)
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_get_current_resources
|
|
|
|
*
|
2006-05-26 20:36:00 +00:00
|
|
|
* PARAMETERS: device_handle - Handle to the device object for the
|
2005-04-16 22:20:36 +00:00
|
|
|
* device we are querying
|
2006-05-26 20:36:00 +00:00
|
|
|
* ret_buffer - Pointer to a buffer to receive the
|
2005-04-16 22:20:36 +00:00
|
|
|
* current resources for the device
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: This function is called to get the current resources for a
|
2006-05-26 20:36:00 +00:00
|
|
|
* specific device. The caller must first acquire a handle for
|
|
|
|
* the desired device. The resource data is placed in the buffer
|
2005-04-16 22:20:36 +00:00
|
|
|
* pointed to by the ret_buffer variable parameter.
|
|
|
|
*
|
|
|
|
* If the function fails an appropriate status will be returned
|
|
|
|
* and the value of ret_buffer is undefined.
|
|
|
|
*
|
|
|
|
* This function attempts to execute the _CRS method contained in
|
|
|
|
* the object indicated by the passed device_handle.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_get_current_resources(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *ret_buffer)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_status status;
|
2006-05-26 20:36:00 +00:00
|
|
|
struct acpi_namespace_node *node;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 21:15:00 +00:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_get_current_resources);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Validate parameters then dispatch to internal routine */
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
|
2005-08-05 04:44:28 +00:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_get_crs_method_data(node, ret_buffer);
|
2005-08-05 04:44:28 +00:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
|
2015-10-19 02:25:56 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_get_possible_resources
|
|
|
|
*
|
2006-05-26 20:36:00 +00:00
|
|
|
* PARAMETERS: device_handle - Handle to the device object for the
|
2005-04-16 22:20:36 +00:00
|
|
|
* device we are querying
|
2006-05-26 20:36:00 +00:00
|
|
|
* ret_buffer - Pointer to a buffer to receive the
|
2005-04-16 22:20:36 +00:00
|
|
|
* resources for the device
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: This function is called to get a list of the possible resources
|
2006-05-26 20:36:00 +00:00
|
|
|
* for a specific device. The caller must first acquire a handle
|
|
|
|
* for the desired device. The resource data is placed in the
|
2005-04-16 22:20:36 +00:00
|
|
|
* buffer pointed to by the ret_buffer variable.
|
|
|
|
*
|
|
|
|
* If the function fails an appropriate status will be returned
|
|
|
|
* and the value of ret_buffer is undefined.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_get_possible_resources(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *ret_buffer)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_status status;
|
2006-05-26 20:36:00 +00:00
|
|
|
struct acpi_namespace_node *node;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 21:15:00 +00:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_get_possible_resources);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Validate parameters then dispatch to internal routine */
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
|
2005-08-05 04:44:28 +00:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
status = acpi_rs_get_prs_method_data(node, ret_buffer);
|
2005-08-05 04:44:28 +00:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
|
2015-10-19 02:25:56 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_set_current_resources
|
|
|
|
*
|
2006-05-26 20:36:00 +00:00
|
|
|
* PARAMETERS: device_handle - Handle to the device object for the
|
|
|
|
* device we are setting resources
|
|
|
|
* in_buffer - Pointer to a buffer containing the
|
2005-04-16 22:20:36 +00:00
|
|
|
* resources to be set for the device
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: This function is called to set the current resources for a
|
2006-05-26 20:36:00 +00:00
|
|
|
* specific device. The caller must first acquire a handle for
|
|
|
|
* the desired device. The resource data is passed to the routine
|
2005-04-16 22:20:36 +00:00
|
|
|
* the buffer pointed to by the in_buffer variable.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_set_current_resources(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *in_buffer)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_status status;
|
2006-05-26 20:36:00 +00:00
|
|
|
struct acpi_namespace_node *node;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-21 21:15:00 +00:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_set_current_resources);
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Validate the buffer, don't allow zero length */
|
2005-04-19 02:49:35 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) {
|
2005-08-05 04:44:28 +00:00
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Validate parameters then dispatch to internal routine */
|
|
|
|
|
|
|
|
status = acpi_rs_validate_parameters(device_handle, in_buffer, &node);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
status = acpi_rs_set_srs_method_data(node, in_buffer);
|
2005-08-05 04:44:28 +00:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-16 22:20:36 +00:00
|
|
|
}
|
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_set_current_resources)
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2011-11-16 06:46:57 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_get_event_resources
|
|
|
|
*
|
|
|
|
* PARAMETERS: device_handle - Handle to the device object for the
|
|
|
|
* device we are getting resources
|
|
|
|
* in_buffer - Pointer to a buffer containing the
|
|
|
|
* resources to be set for the device
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: This function is called to get the event resources for a
|
|
|
|
* specific device. The caller must first acquire a handle for
|
|
|
|
* the desired device. The resource data is passed to the routine
|
|
|
|
* the buffer pointed to by the in_buffer variable. Uses the
|
|
|
|
* _AEI method.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
|
|
acpi_get_event_resources(acpi_handle device_handle,
|
|
|
|
struct acpi_buffer *ret_buffer)
|
|
|
|
{
|
|
|
|
acpi_status status;
|
|
|
|
struct acpi_namespace_node *node;
|
|
|
|
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_get_event_resources);
|
|
|
|
|
|
|
|
/* Validate parameters then dispatch to internal routine */
|
|
|
|
|
|
|
|
status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
status = acpi_rs_get_aei_method_data(node, ret_buffer);
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_get_event_resources)
|
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
/******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_resource_to_address64
|
|
|
|
*
|
2012-07-12 01:40:10 +00:00
|
|
|
* PARAMETERS: resource - Pointer to a resource
|
|
|
|
* out - Pointer to the users's return buffer
|
2006-05-26 20:36:00 +00:00
|
|
|
* (a struct acpi_resource_address64)
|
2005-04-16 22:20:36 +00:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: If the resource is an address16, address32, or address64,
|
2006-05-26 20:36:00 +00:00
|
|
|
* copy it to the address64 return buffer. This saves the
|
2005-04-16 22:20:36 +00:00
|
|
|
* caller from having to duplicate code for different-sized
|
|
|
|
* addresses.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
2005-08-05 04:44:28 +00:00
|
|
|
acpi_resource_to_address64(struct acpi_resource *resource,
|
|
|
|
struct acpi_resource_address64 *out)
|
2005-04-16 22:20:36 +00:00
|
|
|
{
|
2005-08-05 04:44:28 +00:00
|
|
|
struct acpi_resource_address16 *address16;
|
|
|
|
struct acpi_resource_address32 *address32;
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2005-11-17 18:07:00 +00:00
|
|
|
if (!resource || !out) {
|
|
|
|
return (AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Convert 16 or 32 address descriptor to 64 */
|
|
|
|
|
2005-09-16 20:51:15 +00:00
|
|
|
switch (resource->type) {
|
[ACPI] ACPICA 20050930
Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)
All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".
The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available. Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)
Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.
acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-30 23:03:00 +00:00
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-04-22 05:13:48 +00:00
|
|
|
address16 =
|
|
|
|
ACPI_CAST_PTR(struct acpi_resource_address16,
|
|
|
|
&resource->data);
|
2005-08-05 04:44:28 +00:00
|
|
|
ACPI_COPY_ADDRESS(out, address16);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
|
[ACPI] ACPICA 20050930
Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)
All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".
The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available. Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)
Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.
acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-30 23:03:00 +00:00
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
2005-04-16 22:20:36 +00:00
|
|
|
|
2009-04-22 05:13:48 +00:00
|
|
|
address32 =
|
|
|
|
ACPI_CAST_PTR(struct acpi_resource_address32,
|
|
|
|
&resource->data);
|
2005-08-05 04:44:28 +00:00
|
|
|
ACPI_COPY_ADDRESS(out, address32);
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
|
[ACPI] ACPICA 20050930
Completed a major overhaul of the Resource Manager code -
specifically, optimizations in the area of the AML/internal
resource conversion code. The code has been optimized to
simplify and eliminate duplicated code, CPU stack use has
been decreased by optimizing function parameters and local
variables, and naming conventions across the manager have
been standardized for clarity and ease of maintenance (this
includes function, parameter, variable, and struct/typedef
names.)
All Resource Manager dispatch and information tables have
been moved to a single location for clarity and ease of
maintenance. One new file was created, named "rsinfo.c".
The ACPI return macros (return_ACPI_STATUS, etc.) have
been modified to guarantee that the argument is
not evaluated twice, making them less prone to macro
side-effects. However, since there exists the possibility
of additional stack use if a particular compiler cannot
optimize them (such as in the debug generation case),
the original macros are optionally available. Note that
some invocations of the return_VALUE macro may now cause
size mismatch warnings; the return_UINT8 and return_UINT32
macros are provided to eliminate these. (From Randy Dunlap)
Implemented a new mechanism to enable debug tracing for
individual control methods. A new external interface,
acpi_debug_trace(), is provided to enable this mechanism. The
intent is to allow the host OS to easily enable and disable
tracing for problematic control methods. This interface
can be easily exposed to a user or debugger interface if
desired. See the file psxface.c for details.
acpi_ut_callocate() will now return a valid pointer if a
length of zero is specified - a length of one is used
and a warning is issued. This matches the behavior of
acpi_ut_allocate().
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-30 23:03:00 +00:00
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
2005-04-16 22:20:36 +00:00
|
|
|
|
|
|
|
/* Simple copy for 64 bit source */
|
|
|
|
|
2015-07-01 06:45:11 +00:00
|
|
|
memcpy(out, &resource->data,
|
|
|
|
sizeof(struct acpi_resource_address64));
|
2005-04-16 22:20:36 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2013-06-08 00:58:14 +00:00
|
|
|
|
2005-04-16 22:20:36 +00:00
|
|
|
return (AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (AE_OK);
|
|
|
|
}
|
2005-08-05 04:44:28 +00:00
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_resource_to_address64)
|
2005-11-17 18:07:00 +00:00
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_get_vendor_resource
|
|
|
|
*
|
2006-05-26 20:36:00 +00:00
|
|
|
* PARAMETERS: device_handle - Handle for the parent device object
|
2012-07-12 01:40:10 +00:00
|
|
|
* name - Method name for the parent resource
|
2006-05-26 20:36:00 +00:00
|
|
|
* (METHOD_NAME__CRS or METHOD_NAME__PRS)
|
2012-07-12 01:40:10 +00:00
|
|
|
* uuid - Pointer to the UUID to be matched.
|
2006-05-26 20:36:00 +00:00
|
|
|
* includes both subtype and 16-byte UUID
|
|
|
|
* ret_buffer - Where the vendor resource is returned
|
2005-11-17 18:07:00 +00:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
2012-12-31 00:03:58 +00:00
|
|
|
* DESCRIPTION: Walk a resource template for the specified device to find a
|
2005-11-17 18:07:00 +00:00
|
|
|
* vendor-defined resource that matches the supplied UUID and
|
|
|
|
* UUID subtype. Returns a struct acpi_resource of type Vendor.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
|
|
acpi_get_vendor_resource(acpi_handle device_handle,
|
|
|
|
char *name,
|
2016-05-05 04:57:53 +00:00
|
|
|
struct acpi_vendor_uuid *uuid,
|
|
|
|
struct acpi_buffer *ret_buffer)
|
2005-11-17 18:07:00 +00:00
|
|
|
{
|
|
|
|
struct acpi_vendor_walk_info info;
|
|
|
|
acpi_status status;
|
|
|
|
|
|
|
|
/* Other parameters are validated by acpi_walk_resources */
|
|
|
|
|
|
|
|
if (!uuid || !ret_buffer) {
|
|
|
|
return (AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
|
|
|
info.uuid = uuid;
|
|
|
|
info.buffer = ret_buffer;
|
|
|
|
info.status = AE_NOT_EXIST;
|
|
|
|
|
|
|
|
/* Walk the _CRS or _PRS resource list for this device */
|
|
|
|
|
|
|
|
status =
|
|
|
|
acpi_walk_resources(device_handle, name,
|
|
|
|
acpi_rs_match_vendor_resource, &info);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return (status);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (info.status);
|
|
|
|
}
|
|
|
|
|
2006-10-03 04:00:00 +00:00
|
|
|
ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource)
|
|
|
|
|
2005-11-17 18:07:00 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_rs_match_vendor_resource
|
|
|
|
*
|
2006-03-17 21:44:00 +00:00
|
|
|
* PARAMETERS: acpi_walk_resource_callback
|
2005-11-17 18:07:00 +00:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
|
|
acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context)
|
|
|
|
{
|
|
|
|
struct acpi_vendor_walk_info *info = context;
|
|
|
|
struct acpi_resource_vendor_typed *vendor;
|
|
|
|
struct acpi_buffer *buffer;
|
|
|
|
acpi_status status;
|
|
|
|
|
|
|
|
/* Ignore all descriptors except Vendor */
|
|
|
|
|
|
|
|
if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) {
|
|
|
|
return (AE_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
vendor = &resource->data.vendor_typed;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For a valid match, these conditions must hold:
|
|
|
|
*
|
|
|
|
* 1) Length of descriptor data must be at least as long as a UUID struct
|
|
|
|
* 2) The UUID subtypes must match
|
|
|
|
* 3) The UUID data must match
|
|
|
|
*/
|
|
|
|
if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) ||
|
|
|
|
(vendor->uuid_subtype != info->uuid->subtype) ||
|
2015-07-01 06:45:11 +00:00
|
|
|
(memcmp(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) {
|
2005-11-17 18:07:00 +00:00
|
|
|
return (AE_OK);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Validate/Allocate/Clear caller buffer */
|
|
|
|
|
|
|
|
buffer = info->buffer;
|
|
|
|
status = acpi_ut_initialize_buffer(buffer, resource->length);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return (status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Found the correct resource, copy and return it */
|
|
|
|
|
2015-07-01 06:45:11 +00:00
|
|
|
memcpy(buffer->pointer, resource, resource->length);
|
2005-11-17 18:07:00 +00:00
|
|
|
buffer->length = resource->length;
|
|
|
|
|
|
|
|
/* Found the desired descriptor, terminate resource walk */
|
|
|
|
|
|
|
|
info->status = AE_OK;
|
|
|
|
return (AE_CTRL_TERMINATE);
|
|
|
|
}
|
2006-10-03 04:00:00 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
2012-12-31 00:03:58 +00:00
|
|
|
* FUNCTION: acpi_walk_resource_buffer
|
2006-05-26 20:36:00 +00:00
|
|
|
*
|
2012-12-31 00:03:58 +00:00
|
|
|
* PARAMETERS: buffer - Formatted buffer returned by one of the
|
|
|
|
* various Get*Resource functions
|
2006-05-26 20:36:00 +00:00
|
|
|
* user_function - Called for each resource
|
2012-07-12 01:40:10 +00:00
|
|
|
* context - Passed to user_function
|
2006-05-26 20:36:00 +00:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
2012-12-31 00:03:58 +00:00
|
|
|
* DESCRIPTION: Walks the input resource template. The user_function is called
|
|
|
|
* once for each resource in the list.
|
2006-05-26 20:36:00 +00:00
|
|
|
*
|
|
|
|
******************************************************************************/
|
2012-12-31 00:03:58 +00:00
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
acpi_status
|
2016-05-05 04:57:53 +00:00
|
|
|
acpi_walk_resource_buffer(struct acpi_buffer *buffer,
|
2012-12-31 00:03:58 +00:00
|
|
|
acpi_walk_resource_callback user_function,
|
|
|
|
void *context)
|
2006-05-26 20:36:00 +00:00
|
|
|
{
|
2012-12-31 00:03:58 +00:00
|
|
|
acpi_status status = AE_OK;
|
2006-05-26 20:36:00 +00:00
|
|
|
struct acpi_resource *resource;
|
|
|
|
struct acpi_resource *resource_end;
|
|
|
|
|
2012-12-31 00:03:58 +00:00
|
|
|
ACPI_FUNCTION_TRACE(acpi_walk_resource_buffer);
|
2006-05-26 20:36:00 +00:00
|
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
|
2012-12-31 00:03:58 +00:00
|
|
|
if (!buffer || !buffer->pointer || !user_function) {
|
2006-05-26 20:36:00 +00:00
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
2012-12-31 00:03:58 +00:00
|
|
|
/* Buffer contains the resource list and length */
|
2006-05-26 20:36:00 +00:00
|
|
|
|
2012-12-31 00:03:58 +00:00
|
|
|
resource = ACPI_CAST_PTR(struct acpi_resource, buffer->pointer);
|
2006-05-26 20:36:00 +00:00
|
|
|
resource_end =
|
2012-12-31 00:03:58 +00:00
|
|
|
ACPI_ADD_PTR(struct acpi_resource, buffer->pointer, buffer->length);
|
2006-05-26 20:36:00 +00:00
|
|
|
|
|
|
|
/* Walk the resource list until the end_tag is found (or buffer end) */
|
|
|
|
|
|
|
|
while (resource < resource_end) {
|
|
|
|
|
2013-03-08 09:19:38 +00:00
|
|
|
/* Sanity check the resource type */
|
2006-05-26 20:36:00 +00:00
|
|
|
|
|
|
|
if (resource->type > ACPI_RESOURCE_TYPE_MAX) {
|
|
|
|
status = AE_AML_INVALID_RESOURCE_TYPE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2013-03-08 09:19:38 +00:00
|
|
|
/* Sanity check the length. It must not be zero, or we loop forever */
|
|
|
|
|
|
|
|
if (!resource->length) {
|
|
|
|
return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH);
|
|
|
|
}
|
|
|
|
|
2006-05-26 20:36:00 +00:00
|
|
|
/* Invoke the user function, abort on any error returned */
|
|
|
|
|
|
|
|
status = user_function(resource, context);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
if (status == AE_CTRL_TERMINATE) {
|
|
|
|
|
|
|
|
/* This is an OK termination by the user function */
|
|
|
|
|
|
|
|
status = AE_OK;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* end_tag indicates end-of-list */
|
|
|
|
|
|
|
|
if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get the next resource descriptor */
|
|
|
|
|
2012-12-19 05:38:31 +00:00
|
|
|
resource = ACPI_NEXT_RESOURCE(resource);
|
2006-05-26 20:36:00 +00:00
|
|
|
}
|
|
|
|
|
2012-12-31 00:03:58 +00:00
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_walk_resource_buffer)
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_walk_resources
|
|
|
|
*
|
|
|
|
* PARAMETERS: device_handle - Handle to the device object for the
|
|
|
|
* device we are querying
|
|
|
|
* name - Method name of the resources we want.
|
|
|
|
* (METHOD_NAME__CRS, METHOD_NAME__PRS, or
|
2017-08-03 06:27:35 +00:00
|
|
|
* METHOD_NAME__AEI or METHOD_NAME__DMA)
|
2012-12-31 00:03:58 +00:00
|
|
|
* user_function - Called for each resource
|
|
|
|
* context - Passed to user_function
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Retrieves the current or possible resource list for the
|
|
|
|
* specified device. The user_function is called once for
|
|
|
|
* each resource in the list.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
|
|
acpi_walk_resources(acpi_handle device_handle,
|
|
|
|
char *name,
|
|
|
|
acpi_walk_resource_callback user_function, void *context)
|
|
|
|
{
|
|
|
|
acpi_status status;
|
|
|
|
struct acpi_buffer buffer;
|
|
|
|
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_walk_resources);
|
|
|
|
|
|
|
|
/* Parameter validation */
|
|
|
|
|
|
|
|
if (!device_handle || !user_function || !name ||
|
|
|
|
(!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) &&
|
|
|
|
!ACPI_COMPARE_NAME(name, METHOD_NAME__PRS) &&
|
2017-08-03 06:27:35 +00:00
|
|
|
!ACPI_COMPARE_NAME(name, METHOD_NAME__AEI) &&
|
|
|
|
!ACPI_COMPARE_NAME(name, METHOD_NAME__DMA))) {
|
2012-12-31 00:03:58 +00:00
|
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
|
|
}
|
|
|
|
|
2017-08-03 06:27:35 +00:00
|
|
|
/* Get the _CRS/_PRS/_AEI/_DMA resource list */
|
2012-12-31 00:03:58 +00:00
|
|
|
|
|
|
|
buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
|
|
|
|
status = acpi_rs_get_method_data(device_handle, name, &buffer);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Walk the resource list and cleanup */
|
|
|
|
|
|
|
|
status = acpi_walk_resource_buffer(&buffer, user_function, context);
|
2006-05-26 20:36:00 +00:00
|
|
|
ACPI_FREE(buffer.pointer);
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_walk_resources)
|