kernel-ark/drivers/acpi/resources/rslist.c
Robert Moore 44f6c01242 ACPICA 20050408 from Bob Moore
Fixed three cases in the interpreter where an "index"
argument to an ASL function was still (internally) 32
bits instead of the required 64 bits.  This was the Index
argument to the Index, Mid, and Match operators.

The "strupr" function is now permanently local
(acpi_ut_strupr), since this is not a POSIX-defined
function and not present in most kernel-level C
libraries. References to the C library strupr function
have been removed from the headers.

Completed the deployment of static
functions/prototypes. All prototypes with the static
attribute have been moved from the headers to the owning
C file.

ACPICA 20050329 from Bob Moore

An error is now generated if an attempt is made to create
a Buffer Field of length zero (A CreateField with a length
operand of zero.)

The interpreter now issues a warning whenever executable
code at the module level is detected during ACPI table
load. This will give some idea of the prevalence of this
type of code.

Implemented support for references to named objects (other
than control methods) within package objects.

Enhanced package object output for the debug
object. Package objects are now completely dumped, showing
all elements.

Enhanced miscellaneous object output for the debug
object. Any object can now be written to the debug object
(for example, a device object can be written, and the type
of the object will be displayed.)

The "static" qualifier has been added to all local
functions across the core subsystem.

The number of "long" lines (> 80 chars) within the source
has been significantly reduced, by about 1/3.

Cleaned up all header files to ensure that all CA/iASL
functions are prototyped (even static functions) and the
formatting is consistent.

Two new header files have been added, acopcode.h and
acnames.h.

Removed several obsolete functions that were no longer
used.

Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:08:52 -04:00

507 lines
13 KiB
C

/*******************************************************************************
*
* Module Name: rslist - Linked list utilities
*
******************************************************************************/
/*
* 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 <acpi/acpi.h>
#include <acpi/acresrc.h>
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME ("rslist")
/*******************************************************************************
*
* FUNCTION: acpi_rs_get_resource_type
*
* PARAMETERS: resource_start_byte - Byte 0 of a resource descriptor
*
* RETURN: The Resource Type with no extraneous bits
*
* DESCRIPTION: Extract the Resource Type/Name from the first byte of
* a resource descriptor.
*
******************************************************************************/
u8
acpi_rs_get_resource_type (
u8 resource_start_byte)
{
ACPI_FUNCTION_ENTRY ();
/* Determine if this is a small or large resource */
switch (resource_start_byte & ACPI_RDESC_TYPE_MASK) {
case ACPI_RDESC_TYPE_SMALL:
/* Small Resource Type -- Only bits 6:3 are valid */
return ((u8) (resource_start_byte & ACPI_RDESC_SMALL_MASK));
case ACPI_RDESC_TYPE_LARGE:
/* Large Resource Type -- All bits are valid */
return (resource_start_byte);
default:
/* Invalid type */
break;
}
return (0xFF);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_byte_stream_to_list
*
* PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream
* byte_stream_buffer_length - Length of byte_stream_buffer
* output_buffer - Pointer to the buffer that will
* contain the output structures
*
* RETURN: Status
*
* DESCRIPTION: Takes the resource byte stream and parses it, creating a
* linked list of resources in the caller's output buffer
*
******************************************************************************/
acpi_status
acpi_rs_byte_stream_to_list (
u8 *byte_stream_buffer,
u32 byte_stream_buffer_length,
u8 *output_buffer)
{
acpi_status status;
acpi_size bytes_parsed = 0;
u8 resource_type = 0;
acpi_size bytes_consumed = 0;
u8 *buffer = output_buffer;
acpi_size structure_size = 0;
u8 end_tag_processed = FALSE;
struct acpi_resource *resource;
ACPI_FUNCTION_TRACE ("rs_byte_stream_to_list");
while (bytes_parsed < byte_stream_buffer_length &&
!end_tag_processed) {
/* The next byte in the stream is the resource type */
resource_type = acpi_rs_get_resource_type (*byte_stream_buffer);
switch (resource_type) {
case ACPI_RDESC_TYPE_MEMORY_24:
/*
* 24-Bit Memory Resource
*/
status = acpi_rs_memory24_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_LARGE_VENDOR:
/*
* Vendor Defined Resource
*/
status = acpi_rs_vendor_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_MEMORY_32:
/*
* 32-Bit Memory Range Resource
*/
status = acpi_rs_memory32_range_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_FIXED_MEMORY_32:
/*
* 32-Bit Fixed Memory Resource
*/
status = acpi_rs_fixed_memory32_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_QWORD_ADDRESS_SPACE:
case ACPI_RDESC_TYPE_EXTENDED_ADDRESS_SPACE:
/*
* 64-Bit Address Resource
*/
status = acpi_rs_address64_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_DWORD_ADDRESS_SPACE:
/*
* 32-Bit Address Resource
*/
status = acpi_rs_address32_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_WORD_ADDRESS_SPACE:
/*
* 16-Bit Address Resource
*/
status = acpi_rs_address16_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_EXTENDED_XRUPT:
/*
* Extended IRQ
*/
status = acpi_rs_extended_irq_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_IRQ_FORMAT:
/*
* IRQ Resource
*/
status = acpi_rs_irq_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_DMA_FORMAT:
/*
* DMA Resource
*/
status = acpi_rs_dma_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_START_DEPENDENT:
/*
* Start Dependent Functions Resource
*/
status = acpi_rs_start_depend_fns_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_END_DEPENDENT:
/*
* End Dependent Functions Resource
*/
status = acpi_rs_end_depend_fns_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_IO_PORT:
/*
* IO Port Resource
*/
status = acpi_rs_io_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_FIXED_IO_PORT:
/*
* Fixed IO Port Resource
*/
status = acpi_rs_fixed_io_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_SMALL_VENDOR:
/*
* Vendor Specific Resource
*/
status = acpi_rs_vendor_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
case ACPI_RDESC_TYPE_END_TAG:
/*
* End Tag
*/
end_tag_processed = TRUE;
status = acpi_rs_end_tag_resource (byte_stream_buffer,
&bytes_consumed, &buffer, &structure_size);
break;
default:
/*
* Invalid/Unknown resource type
*/
status = AE_AML_INVALID_RESOURCE_TYPE;
break;
}
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Update the return value and counter */
bytes_parsed += bytes_consumed;
/* Set the byte stream to point to the next resource */
byte_stream_buffer += bytes_consumed;
/* Set the Buffer to the next structure */
resource = ACPI_CAST_PTR (struct acpi_resource, buffer);
resource->length = (u32) ACPI_ALIGN_RESOURCE_SIZE (resource->length);
buffer += ACPI_ALIGN_RESOURCE_SIZE (structure_size);
}
/* Check the reason for exiting the while loop */
if (!end_tag_processed) {
return_ACPI_STATUS (AE_AML_NO_RESOURCE_END_TAG);
}
return_ACPI_STATUS (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_list_to_byte_stream
*
* PARAMETERS: linked_list - Pointer to the resource linked list
* byte_steam_size_needed - Calculated size of the byte stream
* needed from calling
* acpi_rs_get_byte_stream_length()
* The size of the output_buffer is
* guaranteed to be >=
* byte_stream_size_needed
* output_buffer - Pointer to the buffer that will
* contain the byte stream
*
* RETURN: Status
*
* DESCRIPTION: Takes the resource linked list and parses it, creating a
* byte stream of resources in the caller's output buffer
*
******************************************************************************/
acpi_status
acpi_rs_list_to_byte_stream (
struct acpi_resource *linked_list,
acpi_size byte_stream_size_needed,
u8 *output_buffer)
{
acpi_status status;
u8 *buffer = output_buffer;
acpi_size bytes_consumed = 0;
u8 done = FALSE;
ACPI_FUNCTION_TRACE ("rs_list_to_byte_stream");
while (!done) {
switch (linked_list->id) {
case ACPI_RSTYPE_IRQ:
/*
* IRQ Resource
*/
status = acpi_rs_irq_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_DMA:
/*
* DMA Resource
*/
status = acpi_rs_dma_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_START_DPF:
/*
* Start Dependent Functions Resource
*/
status = acpi_rs_start_depend_fns_stream (linked_list,
&buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_END_DPF:
/*
* End Dependent Functions Resource
*/
status = acpi_rs_end_depend_fns_stream (linked_list,
&buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_IO:
/*
* IO Port Resource
*/
status = acpi_rs_io_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_FIXED_IO:
/*
* Fixed IO Port Resource
*/
status = acpi_rs_fixed_io_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_VENDOR:
/*
* Vendor Defined Resource
*/
status = acpi_rs_vendor_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_END_TAG:
/*
* End Tag
*/
status = acpi_rs_end_tag_stream (linked_list, &buffer, &bytes_consumed);
/* An End Tag indicates the end of the Resource Template */
done = TRUE;
break;
case ACPI_RSTYPE_MEM24:
/*
* 24-Bit Memory Resource
*/
status = acpi_rs_memory24_stream (linked_list, &buffer, &bytes_consumed);
break;
case ACPI_RSTYPE_MEM32:
/*
* 32-Bit Memory Range Resource
*/
status = acpi_rs_memory32_range_stream (linked_list, &buffer,
&bytes_consumed);
break;
case ACPI_RSTYPE_FIXED_MEM32:
/*
* 32-Bit Fixed Memory Resource
*/
status = acpi_rs_fixed_memory32_stream (linked_list, &buffer,
&bytes_consumed);
break;
case ACPI_RSTYPE_ADDRESS16:
/*
* 16-Bit Address Descriptor Resource
*/
status = acpi_rs_address16_stream (linked_list, &buffer,
&bytes_consumed);
break;
case ACPI_RSTYPE_ADDRESS32:
/*
* 32-Bit Address Descriptor Resource
*/
status = acpi_rs_address32_stream (linked_list, &buffer,
&bytes_consumed);
break;
case ACPI_RSTYPE_ADDRESS64:
/*
* 64-Bit Address Descriptor Resource
*/
status = acpi_rs_address64_stream (linked_list, &buffer,
&bytes_consumed);
break;
case ACPI_RSTYPE_EXT_IRQ:
/*
* Extended IRQ Resource
*/
status = acpi_rs_extended_irq_stream (linked_list, &buffer,
&bytes_consumed);
break;
default:
/*
* If we get here, everything is out of sync,
* so exit with an error
*/
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Invalid descriptor type (%X) in resource list\n",
linked_list->id));
status = AE_BAD_DATA;
break;
}
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
}
/* Set the Buffer to point to the open byte */
buffer += bytes_consumed;
/* Point to the next object */
linked_list = ACPI_PTR_ADD (struct acpi_resource,
linked_list, linked_list->length);
}
return_ACPI_STATUS (AE_OK);
}