Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
437
drivers/acpi/resources/rsxface.c
Normal file
437
drivers/acpi/resources/rsxface.c
Normal file
@@ -0,0 +1,437 @@
|
||||
/*******************************************************************************
|
||||
*
|
||||
* Module Name: rsxface - Public interfaces to the resource manager
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
/*
|
||||
* Copyright (C) 2000 - 2005, R. Byron Moore
|
||||
* 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 <linux/module.h>
|
||||
|
||||
#include <acpi/acpi.h>
|
||||
#include <acpi/acresrc.h>
|
||||
|
||||
#define _COMPONENT ACPI_RESOURCES
|
||||
ACPI_MODULE_NAME ("rsxface")
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_get_irq_routing_table
|
||||
*
|
||||
* PARAMETERS: device_handle - a handle to the Bus device we are querying
|
||||
* ret_buffer - a pointer to a buffer to receive the
|
||||
* current resources for the device
|
||||
*
|
||||
* RETURN: Status
|
||||
*
|
||||
* DESCRIPTION: This function is called to get the IRQ routing table for a
|
||||
* specific bus. The caller must first acquire a handle for the
|
||||
* desired bus. The routine table is placed in the buffer 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 _PRT method contained in
|
||||
* the object indicated by the passed device_handle.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
acpi_status
|
||||
acpi_get_irq_routing_table (
|
||||
acpi_handle device_handle,
|
||||
struct acpi_buffer *ret_buffer)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
|
||||
ACPI_FUNCTION_TRACE ("acpi_get_irq_routing_table ");
|
||||
|
||||
|
||||
/*
|
||||
* Must have a valid handle and buffer, So we have to have a handle
|
||||
* and a return buffer structure, and 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, so keep going.
|
||||
*/
|
||||
if (!device_handle) {
|
||||
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
status = acpi_ut_validate_buffer (ret_buffer);
|
||||
if (ACPI_FAILURE (status)) {
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
|
||||
status = acpi_rs_get_prt_method_data (device_handle, ret_buffer);
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_get_current_resources
|
||||
*
|
||||
* PARAMETERS: device_handle - a handle to the device object for the
|
||||
* device we are querying
|
||||
* ret_buffer - a pointer to a buffer to receive the
|
||||
* current resources for the device
|
||||
*
|
||||
* RETURN: Status
|
||||
*
|
||||
* DESCRIPTION: This function is called to get the current resources for a
|
||||
* specific device. The caller must first acquire a handle for
|
||||
* the desired device. The resource data is placed in the buffer
|
||||
* 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
|
||||
acpi_get_current_resources (
|
||||
acpi_handle device_handle,
|
||||
struct acpi_buffer *ret_buffer)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
|
||||
ACPI_FUNCTION_TRACE ("acpi_get_current_resources");
|
||||
|
||||
|
||||
/*
|
||||
* Must have a valid handle and buffer, So we have to have a handle
|
||||
* and a return buffer structure, and 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, so keep going.
|
||||
*/
|
||||
if (!device_handle) {
|
||||
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
status = acpi_ut_validate_buffer (ret_buffer);
|
||||
if (ACPI_FAILURE (status)) {
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
|
||||
status = acpi_rs_get_crs_method_data (device_handle, ret_buffer);
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_get_current_resources);
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_get_possible_resources
|
||||
*
|
||||
* PARAMETERS: device_handle - a handle to the device object for the
|
||||
* device we are querying
|
||||
* ret_buffer - a pointer to a buffer to receive the
|
||||
* resources for the device
|
||||
*
|
||||
* RETURN: Status
|
||||
*
|
||||
* DESCRIPTION: This function is called to get a list of the possible resources
|
||||
* for a specific device. The caller must first acquire a handle
|
||||
* for the desired device. The resource data is placed in the
|
||||
* 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.
|
||||
*
|
||||
******************************************************************************/
|
||||
#ifdef ACPI_FUTURE_USAGE
|
||||
acpi_status
|
||||
acpi_get_possible_resources (
|
||||
acpi_handle device_handle,
|
||||
struct acpi_buffer *ret_buffer)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
|
||||
ACPI_FUNCTION_TRACE ("acpi_get_possible_resources");
|
||||
|
||||
|
||||
/*
|
||||
* Must have a valid handle and buffer, So we have to have a handle
|
||||
* and a return buffer structure, and 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, so keep going.
|
||||
*/
|
||||
if (!device_handle) {
|
||||
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
status = acpi_ut_validate_buffer (ret_buffer);
|
||||
if (ACPI_FAILURE (status)) {
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
|
||||
status = acpi_rs_get_prs_method_data (device_handle, ret_buffer);
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_get_possible_resources);
|
||||
#endif /* ACPI_FUTURE_USAGE */
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_walk_resources
|
||||
*
|
||||
* PARAMETERS: device_handle - a handle to the device object for the
|
||||
* device we are querying
|
||||
* Path - method name of the resources we want
|
||||
* (METHOD_NAME__CRS or METHOD_NAME__PRS)
|
||||
* 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 *path,
|
||||
ACPI_WALK_RESOURCE_CALLBACK user_function,
|
||||
void *context)
|
||||
{
|
||||
acpi_status status;
|
||||
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
|
||||
struct acpi_resource *resource;
|
||||
struct acpi_resource *buffer_end;
|
||||
|
||||
|
||||
ACPI_FUNCTION_TRACE ("acpi_walk_resources");
|
||||
|
||||
|
||||
if (!device_handle ||
|
||||
(ACPI_STRNCMP (path, METHOD_NAME__CRS, sizeof (METHOD_NAME__CRS)) &&
|
||||
ACPI_STRNCMP (path, METHOD_NAME__PRS, sizeof (METHOD_NAME__PRS)))) {
|
||||
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
status = acpi_rs_get_method_data (device_handle, path, &buffer);
|
||||
if (ACPI_FAILURE (status)) {
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
|
||||
/* Setup pointers */
|
||||
|
||||
resource = (struct acpi_resource *) buffer.pointer;
|
||||
buffer_end = ACPI_CAST_PTR (struct acpi_resource,
|
||||
((u8 *) buffer.pointer + buffer.length));
|
||||
|
||||
/* Walk the resource list */
|
||||
|
||||
for (;;) {
|
||||
if (!resource || resource->id == ACPI_RSTYPE_END_TAG) {
|
||||
break;
|
||||
}
|
||||
|
||||
status = user_function (resource, context);
|
||||
|
||||
switch (status) {
|
||||
case AE_OK:
|
||||
case AE_CTRL_DEPTH:
|
||||
|
||||
/* Just keep going */
|
||||
|
||||
status = AE_OK;
|
||||
break;
|
||||
|
||||
case AE_CTRL_TERMINATE:
|
||||
|
||||
/* Exit now, with OK stats */
|
||||
|
||||
status = AE_OK;
|
||||
goto cleanup;
|
||||
|
||||
default:
|
||||
|
||||
/* All others are valid exceptions */
|
||||
|
||||
goto cleanup;
|
||||
}
|
||||
|
||||
/* Get the next resource descriptor */
|
||||
|
||||
resource = ACPI_NEXT_RESOURCE (resource);
|
||||
|
||||
/* Check for end-of-buffer */
|
||||
|
||||
if (resource >= buffer_end) {
|
||||
goto cleanup;
|
||||
}
|
||||
}
|
||||
|
||||
cleanup:
|
||||
|
||||
acpi_os_free (buffer.pointer);
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_walk_resources);
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_set_current_resources
|
||||
*
|
||||
* PARAMETERS: device_handle - a handle to the device object for the
|
||||
* device we are changing the resources of
|
||||
* in_buffer - a pointer to a buffer containing the
|
||||
* resources to be set for the device
|
||||
*
|
||||
* RETURN: Status
|
||||
*
|
||||
* DESCRIPTION: This function is called to set the current 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.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
acpi_status
|
||||
acpi_set_current_resources (
|
||||
acpi_handle device_handle,
|
||||
struct acpi_buffer *in_buffer)
|
||||
{
|
||||
acpi_status status;
|
||||
|
||||
|
||||
ACPI_FUNCTION_TRACE ("acpi_set_current_resources");
|
||||
|
||||
|
||||
/*
|
||||
* Must have a valid handle and buffer
|
||||
*/
|
||||
if ((!device_handle) ||
|
||||
(!in_buffer) ||
|
||||
(!in_buffer->pointer) ||
|
||||
(!in_buffer->length)) {
|
||||
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
status = acpi_rs_set_srs_method_data (device_handle, in_buffer);
|
||||
return_ACPI_STATUS (status);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_set_current_resources);
|
||||
|
||||
|
||||
#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field)
|
||||
#define ACPI_COPY_ADDRESS(out, in) \
|
||||
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); \
|
||||
ACPI_COPY_FIELD(out, in, attribute); \
|
||||
ACPI_COPY_FIELD(out, in, granularity); \
|
||||
ACPI_COPY_FIELD(out, in, min_address_range); \
|
||||
ACPI_COPY_FIELD(out, in, max_address_range); \
|
||||
ACPI_COPY_FIELD(out, in, address_translation_offset); \
|
||||
ACPI_COPY_FIELD(out, in, address_length); \
|
||||
ACPI_COPY_FIELD(out, in, resource_source);
|
||||
|
||||
/******************************************************************************
|
||||
*
|
||||
* FUNCTION: acpi_resource_to_address64
|
||||
*
|
||||
* PARAMETERS: resource - Pointer to a resource
|
||||
* out - Pointer to the users's return
|
||||
* buffer (a struct
|
||||
* struct acpi_resource_address64)
|
||||
*
|
||||
* RETURN: Status
|
||||
*
|
||||
* DESCRIPTION: If the resource is an address16, address32, or address64,
|
||||
* copy it to the address64 return buffer. This saves the
|
||||
* caller from having to duplicate code for different-sized
|
||||
* addresses.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
acpi_status
|
||||
acpi_resource_to_address64 (
|
||||
struct acpi_resource *resource,
|
||||
struct acpi_resource_address64 *out)
|
||||
{
|
||||
struct acpi_resource_address16 *address16;
|
||||
struct acpi_resource_address32 *address32;
|
||||
|
||||
|
||||
switch (resource->id) {
|
||||
case ACPI_RSTYPE_ADDRESS16:
|
||||
|
||||
address16 = (struct acpi_resource_address16 *) &resource->data;
|
||||
ACPI_COPY_ADDRESS(out, address16);
|
||||
break;
|
||||
|
||||
|
||||
case ACPI_RSTYPE_ADDRESS32:
|
||||
|
||||
address32 = (struct acpi_resource_address32 *) &resource->data;
|
||||
ACPI_COPY_ADDRESS(out, address32);
|
||||
break;
|
||||
|
||||
|
||||
case ACPI_RSTYPE_ADDRESS64:
|
||||
|
||||
/* Simple copy for 64 bit source */
|
||||
|
||||
ACPI_MEMCPY (out, &resource->data, sizeof (struct acpi_resource_address64));
|
||||
break;
|
||||
|
||||
|
||||
default:
|
||||
return (AE_BAD_PARAMETER);
|
||||
}
|
||||
|
||||
return (AE_OK);
|
||||
}
|
||||
EXPORT_SYMBOL(acpi_resource_to_address64);
|
||||
|
||||
Reference in New Issue
Block a user