44f6c01242
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>
438 lines
14 KiB
C
438 lines
14 KiB
C
/*******************************************************************************
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*
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* Module Name: rsxface - Public interfaces to the resource manager
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2005, R. Byron Moore
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <linux/module.h>
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#include <acpi/acpi.h>
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#include <acpi/acresrc.h>
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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME ("rsxface")
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/* Local macros for 16,32-bit to 64-bit conversion */
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#define ACPI_COPY_FIELD(out, in, field) ((out)->field = (in)->field)
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#define ACPI_COPY_ADDRESS(out, in) \
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ACPI_COPY_FIELD(out, in, resource_type); \
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ACPI_COPY_FIELD(out, in, producer_consumer); \
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ACPI_COPY_FIELD(out, in, decode); \
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ACPI_COPY_FIELD(out, in, min_address_fixed); \
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ACPI_COPY_FIELD(out, in, max_address_fixed); \
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ACPI_COPY_FIELD(out, in, attribute); \
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ACPI_COPY_FIELD(out, in, granularity); \
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ACPI_COPY_FIELD(out, in, min_address_range); \
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ACPI_COPY_FIELD(out, in, max_address_range); \
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ACPI_COPY_FIELD(out, in, address_translation_offset); \
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ACPI_COPY_FIELD(out, in, address_length); \
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ACPI_COPY_FIELD(out, in, resource_source);
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/*******************************************************************************
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*
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* FUNCTION: acpi_get_irq_routing_table
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*
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* PARAMETERS: device_handle - a handle to the Bus device we are querying
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* ret_buffer - a pointer to a buffer to receive the
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* current resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the IRQ routing table for a
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* specific bus. The caller must first acquire a handle for the
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* desired bus. The routine table is placed in the buffer pointed
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* to by the ret_buffer variable parameter.
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*
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* If the function fails an appropriate status will be returned
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* and the value of ret_buffer is undefined.
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*
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* This function attempts to execute the _PRT method contained in
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* the object indicated by the passed device_handle.
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*
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******************************************************************************/
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acpi_status
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acpi_get_irq_routing_table (
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acpi_handle device_handle,
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struct acpi_buffer *ret_buffer)
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{
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acpi_status status;
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ACPI_FUNCTION_TRACE ("acpi_get_irq_routing_table ");
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/*
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* Must have a valid handle and buffer, So we have to have a handle
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* and a return buffer structure, and if there is a non-zero buffer length
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* we also need a valid pointer in the buffer. If it's a zero buffer length,
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* we'll be returning the needed buffer size, so keep going.
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*/
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if (!device_handle) {
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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status = acpi_ut_validate_buffer (ret_buffer);
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if (ACPI_FAILURE (status)) {
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return_ACPI_STATUS (status);
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}
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status = acpi_rs_get_prt_method_data (device_handle, ret_buffer);
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return_ACPI_STATUS (status);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_get_current_resources
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*
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* PARAMETERS: device_handle - a handle to the device object for the
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* device we are querying
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* ret_buffer - a pointer to a buffer to receive the
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* current resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get the current resources for a
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* specific device. The caller must first acquire a handle for
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* the desired device. The resource data is placed in the buffer
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* pointed to by the ret_buffer variable parameter.
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*
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* If the function fails an appropriate status will be returned
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* and the value of ret_buffer is undefined.
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*
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* This function attempts to execute the _CRS method contained in
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* the object indicated by the passed device_handle.
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*
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******************************************************************************/
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acpi_status
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acpi_get_current_resources (
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acpi_handle device_handle,
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struct acpi_buffer *ret_buffer)
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{
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acpi_status status;
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ACPI_FUNCTION_TRACE ("acpi_get_current_resources");
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/*
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* Must have a valid handle and buffer, So we have to have a handle
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* and a return buffer structure, and if there is a non-zero buffer length
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* we also need a valid pointer in the buffer. If it's a zero buffer length,
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* we'll be returning the needed buffer size, so keep going.
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*/
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if (!device_handle) {
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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status = acpi_ut_validate_buffer (ret_buffer);
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if (ACPI_FAILURE (status)) {
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return_ACPI_STATUS (status);
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}
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status = acpi_rs_get_crs_method_data (device_handle, ret_buffer);
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return_ACPI_STATUS (status);
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}
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EXPORT_SYMBOL(acpi_get_current_resources);
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/*******************************************************************************
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*
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* FUNCTION: acpi_get_possible_resources
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*
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* PARAMETERS: device_handle - a handle to the device object for the
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* device we are querying
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* ret_buffer - a pointer to a buffer to receive the
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* resources for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to get a list of the possible resources
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* for a specific device. The caller must first acquire a handle
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* for the desired device. The resource data is placed in the
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* buffer pointed to by the ret_buffer variable.
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*
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* If the function fails an appropriate status will be returned
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* and the value of ret_buffer is undefined.
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*
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******************************************************************************/
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#ifdef ACPI_FUTURE_USAGE
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acpi_status
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acpi_get_possible_resources (
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acpi_handle device_handle,
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struct acpi_buffer *ret_buffer)
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{
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acpi_status status;
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ACPI_FUNCTION_TRACE ("acpi_get_possible_resources");
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/*
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* Must have a valid handle and buffer, So we have to have a handle
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* and a return buffer structure, and if there is a non-zero buffer length
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* we also need a valid pointer in the buffer. If it's a zero buffer length,
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* we'll be returning the needed buffer size, so keep going.
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*/
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if (!device_handle) {
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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status = acpi_ut_validate_buffer (ret_buffer);
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if (ACPI_FAILURE (status)) {
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return_ACPI_STATUS (status);
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}
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status = acpi_rs_get_prs_method_data (device_handle, ret_buffer);
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return_ACPI_STATUS (status);
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}
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EXPORT_SYMBOL(acpi_get_possible_resources);
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#endif /* ACPI_FUTURE_USAGE */
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/*******************************************************************************
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*
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* FUNCTION: acpi_walk_resources
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*
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* PARAMETERS: device_handle - a handle to the device object for the
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* device we are querying
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* Path - method name of the resources we want
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* (METHOD_NAME__CRS or METHOD_NAME__PRS)
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* user_function - called for each resource
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* Context - passed to user_function
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*
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* RETURN: Status
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*
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* DESCRIPTION: Retrieves the current or possible resource list for the
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* specified device. The user_function is called once for
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* each resource in the list.
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*
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******************************************************************************/
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acpi_status
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acpi_walk_resources (
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acpi_handle device_handle,
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char *path,
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ACPI_WALK_RESOURCE_CALLBACK user_function,
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void *context)
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{
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acpi_status status;
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struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
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struct acpi_resource *resource;
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struct acpi_resource *buffer_end;
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ACPI_FUNCTION_TRACE ("acpi_walk_resources");
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if (!device_handle ||
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(ACPI_STRNCMP (path, METHOD_NAME__CRS, sizeof (METHOD_NAME__CRS)) &&
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ACPI_STRNCMP (path, METHOD_NAME__PRS, sizeof (METHOD_NAME__PRS)))) {
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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status = acpi_rs_get_method_data (device_handle, path, &buffer);
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if (ACPI_FAILURE (status)) {
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return_ACPI_STATUS (status);
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}
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/* Setup pointers */
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resource = (struct acpi_resource *) buffer.pointer;
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buffer_end = ACPI_CAST_PTR (struct acpi_resource,
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((u8 *) buffer.pointer + buffer.length));
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/* Walk the resource list */
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for (;;) {
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if (!resource || resource->id == ACPI_RSTYPE_END_TAG) {
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break;
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}
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status = user_function (resource, context);
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switch (status) {
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case AE_OK:
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case AE_CTRL_DEPTH:
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/* Just keep going */
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status = AE_OK;
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break;
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case AE_CTRL_TERMINATE:
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/* Exit now, with OK stats */
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status = AE_OK;
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goto cleanup;
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default:
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/* All others are valid exceptions */
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goto cleanup;
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}
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/* Get the next resource descriptor */
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resource = ACPI_NEXT_RESOURCE (resource);
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/* Check for end-of-buffer */
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if (resource >= buffer_end) {
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goto cleanup;
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}
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}
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cleanup:
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acpi_os_free (buffer.pointer);
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return_ACPI_STATUS (status);
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}
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EXPORT_SYMBOL(acpi_walk_resources);
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/*******************************************************************************
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*
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* FUNCTION: acpi_set_current_resources
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*
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* PARAMETERS: device_handle - a handle to the device object for the
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* device we are changing the resources of
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* in_buffer - a pointer to a buffer containing the
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* resources to be set for the device
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*
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* RETURN: Status
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*
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* DESCRIPTION: This function is called to set the current resources for a
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* specific device. The caller must first acquire a handle for
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* the desired device. The resource data is passed to the routine
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* the buffer pointed to by the in_buffer variable.
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*
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******************************************************************************/
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acpi_status
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acpi_set_current_resources (
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acpi_handle device_handle,
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struct acpi_buffer *in_buffer)
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{
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acpi_status status;
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ACPI_FUNCTION_TRACE ("acpi_set_current_resources");
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/* Must have a valid handle and buffer */
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if ((!device_handle) ||
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(!in_buffer) ||
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(!in_buffer->pointer) ||
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(!in_buffer->length)) {
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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status = acpi_rs_set_srs_method_data (device_handle, in_buffer);
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return_ACPI_STATUS (status);
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}
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EXPORT_SYMBOL(acpi_set_current_resources);
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/******************************************************************************
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*
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* FUNCTION: acpi_resource_to_address64
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*
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* PARAMETERS: resource - Pointer to a resource
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* out - Pointer to the users's return
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* buffer (a struct
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* struct acpi_resource_address64)
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*
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* RETURN: Status
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*
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* DESCRIPTION: If the resource is an address16, address32, or address64,
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* copy it to the address64 return buffer. This saves the
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* caller from having to duplicate code for different-sized
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* addresses.
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*
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******************************************************************************/
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acpi_status
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acpi_resource_to_address64 (
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struct acpi_resource *resource,
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struct acpi_resource_address64 *out)
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{
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struct acpi_resource_address16 *address16;
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struct acpi_resource_address32 *address32;
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switch (resource->id) {
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case ACPI_RSTYPE_ADDRESS16:
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address16 = (struct acpi_resource_address16 *) &resource->data;
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ACPI_COPY_ADDRESS (out, address16);
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break;
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case ACPI_RSTYPE_ADDRESS32:
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address32 = (struct acpi_resource_address32 *) &resource->data;
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ACPI_COPY_ADDRESS (out, address32);
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break;
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case ACPI_RSTYPE_ADDRESS64:
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/* Simple copy for 64 bit source */
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ACPI_MEMCPY (out, &resource->data, sizeof (struct acpi_resource_address64));
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break;
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default:
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return (AE_BAD_PARAMETER);
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}
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return (AE_OK);
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}
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EXPORT_SYMBOL(acpi_resource_to_address64);
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