forked from luck/tmp_suning_uos_patched
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>
581 lines
17 KiB
C
581 lines
17 KiB
C
/******************************************************************************
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*
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* Module Name: evrgnini- ACPI address_space (op_region) init
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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 <acpi/acpi.h>
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#include <acpi/acevents.h>
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#include <acpi/acnamesp.h>
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#define _COMPONENT ACPI_EVENTS
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ACPI_MODULE_NAME ("evrgnini")
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_system_memory_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Setup a system_memory operation region
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*
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******************************************************************************/
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acpi_status
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acpi_ev_system_memory_region_setup (
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acpi_handle handle,
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u32 function,
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void *handler_context,
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void **region_context)
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{
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union acpi_operand_object *region_desc = (union acpi_operand_object *) handle;
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struct acpi_mem_space_context *local_region_context;
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ACPI_FUNCTION_TRACE ("ev_system_memory_region_setup");
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if (function == ACPI_REGION_DEACTIVATE) {
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if (*region_context) {
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ACPI_MEM_FREE (*region_context);
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*region_context = NULL;
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}
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return_ACPI_STATUS (AE_OK);
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}
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/* Create a new context */
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local_region_context = ACPI_MEM_CALLOCATE (sizeof (struct acpi_mem_space_context));
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if (!(local_region_context)) {
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/* Save the region length and address for use in the handler */
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local_region_context->length = region_desc->region.length;
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local_region_context->address = region_desc->region.address;
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*region_context = local_region_context;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_io_space_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Setup a IO operation region
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*
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******************************************************************************/
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acpi_status
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acpi_ev_io_space_region_setup (
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acpi_handle handle,
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u32 function,
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void *handler_context,
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void **region_context)
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{
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ACPI_FUNCTION_TRACE ("ev_io_space_region_setup");
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if (function == ACPI_REGION_DEACTIVATE) {
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*region_context = NULL;
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}
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else {
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*region_context = handler_context;
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}
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_pci_config_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Setup a PCI_Config operation region
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*
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* MUTEX: Assumes namespace is not locked
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*
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******************************************************************************/
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acpi_status
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acpi_ev_pci_config_region_setup (
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acpi_handle handle,
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u32 function,
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void *handler_context,
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void **region_context)
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{
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acpi_status status = AE_OK;
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acpi_integer pci_value;
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struct acpi_pci_id *pci_id = *region_context;
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union acpi_operand_object *handler_obj;
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struct acpi_namespace_node *parent_node;
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struct acpi_namespace_node *pci_root_node;
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union acpi_operand_object *region_obj = (union acpi_operand_object *) handle;
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struct acpi_device_id object_hID;
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ACPI_FUNCTION_TRACE ("ev_pci_config_region_setup");
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handler_obj = region_obj->region.handler;
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if (!handler_obj) {
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/*
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* No installed handler. This shouldn't happen because the dispatch
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* routine checks before we get here, but we check again just in case.
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*/
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ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
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"Attempting to init a region %p, with no handler\n", region_obj));
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return_ACPI_STATUS (AE_NOT_EXIST);
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}
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*region_context = NULL;
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if (function == ACPI_REGION_DEACTIVATE) {
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if (pci_id) {
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ACPI_MEM_FREE (pci_id);
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}
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return_ACPI_STATUS (status);
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}
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parent_node = acpi_ns_get_parent_node (region_obj->region.node);
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/*
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* Get the _SEG and _BBN values from the device upon which the handler
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* is installed.
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*
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* We need to get the _SEG and _BBN objects relative to the PCI BUS device.
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* This is the device the handler has been registered to handle.
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*/
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/*
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* If the address_space.Node is still pointing to the root, we need
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* to scan upward for a PCI Root bridge and re-associate the op_region
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* handlers with that device.
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*/
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if (handler_obj->address_space.node == acpi_gbl_root_node) {
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/* Start search from the parent object */
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pci_root_node = parent_node;
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while (pci_root_node != acpi_gbl_root_node) {
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status = acpi_ut_execute_HID (pci_root_node, &object_hID);
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if (ACPI_SUCCESS (status)) {
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/* Got a valid _HID, check if this is a PCI root */
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if (!(ACPI_STRNCMP (object_hID.value, PCI_ROOT_HID_STRING,
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sizeof (PCI_ROOT_HID_STRING)))) {
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/* Install a handler for this PCI root bridge */
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status = acpi_install_address_space_handler ((acpi_handle) pci_root_node,
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ACPI_ADR_SPACE_PCI_CONFIG,
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ACPI_DEFAULT_HANDLER, NULL, NULL);
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if (ACPI_FAILURE (status)) {
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if (status == AE_SAME_HANDLER) {
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/*
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* It is OK if the handler is already installed on the root
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* bridge. Still need to return a context object for the
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* new PCI_Config operation region, however.
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*/
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status = AE_OK;
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}
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else {
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ACPI_REPORT_ERROR ((
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"Could not install pci_config handler for Root Bridge %4.4s, %s\n",
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acpi_ut_get_node_name (pci_root_node), acpi_format_exception (status)));
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}
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}
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break;
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}
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}
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pci_root_node = acpi_ns_get_parent_node (pci_root_node);
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}
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/* PCI root bridge not found, use namespace root node */
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}
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else {
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pci_root_node = handler_obj->address_space.node;
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}
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/*
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* If this region is now initialized, we are done.
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* (install_address_space_handler could have initialized it)
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*/
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if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
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return_ACPI_STATUS (AE_OK);
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}
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/* Region is still not initialized. Create a new context */
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pci_id = ACPI_MEM_CALLOCATE (sizeof (struct acpi_pci_id));
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if (!pci_id) {
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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/*
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* For PCI_Config space access, we need the segment, bus,
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* device and function numbers. Acquire them here.
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*/
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/*
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* Get the PCI device and function numbers from the _ADR object
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* contained in the parent's scope.
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*/
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status = acpi_ut_evaluate_numeric_object (METHOD_NAME__ADR, parent_node, &pci_value);
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/*
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* The default is zero, and since the allocation above zeroed
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* the data, just do nothing on failure.
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*/
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if (ACPI_SUCCESS (status)) {
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pci_id->device = ACPI_HIWORD (ACPI_LODWORD (pci_value));
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pci_id->function = ACPI_LOWORD (ACPI_LODWORD (pci_value));
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}
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/* The PCI segment number comes from the _SEG method */
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status = acpi_ut_evaluate_numeric_object (METHOD_NAME__SEG, pci_root_node, &pci_value);
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if (ACPI_SUCCESS (status)) {
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pci_id->segment = ACPI_LOWORD (pci_value);
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}
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/* The PCI bus number comes from the _BBN method */
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status = acpi_ut_evaluate_numeric_object (METHOD_NAME__BBN, pci_root_node, &pci_value);
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if (ACPI_SUCCESS (status)) {
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pci_id->bus = ACPI_LOWORD (pci_value);
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}
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/* Complete this device's pci_id */
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acpi_os_derive_pci_id (pci_root_node, region_obj->region.node, &pci_id);
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*region_context = pci_id;
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return_ACPI_STATUS (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_pci_bar_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Setup a pci_bAR operation region
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*
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* MUTEX: Assumes namespace is not locked
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*
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******************************************************************************/
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acpi_status
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acpi_ev_pci_bar_region_setup (
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acpi_handle handle,
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u32 function,
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void *handler_context,
|
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void **region_context)
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{
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ACPI_FUNCTION_TRACE ("ev_pci_bar_region_setup");
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return_ACPI_STATUS (AE_OK);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_cmos_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Setup a CMOS operation region
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*
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* MUTEX: Assumes namespace is not locked
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*
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******************************************************************************/
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acpi_status
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acpi_ev_cmos_region_setup (
|
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acpi_handle handle,
|
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u32 function,
|
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void *handler_context,
|
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void **region_context)
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{
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ACPI_FUNCTION_TRACE ("ev_cmos_region_setup");
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|
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return_ACPI_STATUS (AE_OK);
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}
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|
|
|
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_default_region_setup
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*
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* PARAMETERS: Handle - Region we are interested in
|
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* Function - Start or stop
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* handler_context - Address space handler context
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* region_context - Region specific context
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*
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* RETURN: Status
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*
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* DESCRIPTION: Default region initialization
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*
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******************************************************************************/
|
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|
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acpi_status
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acpi_ev_default_region_setup (
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acpi_handle handle,
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u32 function,
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void *handler_context,
|
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void **region_context)
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{
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ACPI_FUNCTION_TRACE ("ev_default_region_setup");
|
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|
|
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if (function == ACPI_REGION_DEACTIVATE) {
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*region_context = NULL;
|
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}
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else {
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*region_context = handler_context;
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}
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return_ACPI_STATUS (AE_OK);
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}
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|
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/*******************************************************************************
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*
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* FUNCTION: acpi_ev_initialize_region
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*
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* PARAMETERS: region_obj - Region we are initializing
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* acpi_ns_locked - Is namespace locked?
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*
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* RETURN: Status
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*
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* DESCRIPTION: Initializes the region, finds any _REG methods and saves them
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* for execution at a later time
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*
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* Get the appropriate address space handler for a newly
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* created region.
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*
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* This also performs address space specific initialization. For
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* example, PCI regions must have an _ADR object that contains
|
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* a PCI address in the scope of the definition. This address is
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* required to perform an access to PCI config space.
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*
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******************************************************************************/
|
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|
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acpi_status
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acpi_ev_initialize_region (
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union acpi_operand_object *region_obj,
|
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u8 acpi_ns_locked)
|
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{
|
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union acpi_operand_object *handler_obj;
|
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union acpi_operand_object *obj_desc;
|
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acpi_adr_space_type space_id;
|
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struct acpi_namespace_node *node;
|
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acpi_status status;
|
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struct acpi_namespace_node *method_node;
|
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acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
|
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union acpi_operand_object *region_obj2;
|
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|
|
|
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ACPI_FUNCTION_TRACE_U32 ("ev_initialize_region", acpi_ns_locked);
|
|
|
|
|
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if (!region_obj) {
|
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return_ACPI_STATUS (AE_BAD_PARAMETER);
|
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}
|
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|
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if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {
|
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return_ACPI_STATUS (AE_OK);
|
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}
|
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|
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region_obj2 = acpi_ns_get_secondary_object (region_obj);
|
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if (!region_obj2) {
|
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return_ACPI_STATUS (AE_NOT_EXIST);
|
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}
|
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|
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node = acpi_ns_get_parent_node (region_obj->region.node);
|
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space_id = region_obj->region.space_id;
|
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|
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/* Setup defaults */
|
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|
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region_obj->region.handler = NULL;
|
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region_obj2->extra.method_REG = NULL;
|
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region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
|
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region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
|
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|
|
/* Find any "_REG" method associated with this region definition */
|
|
|
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status = acpi_ns_search_node (*reg_name_ptr, node,
|
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ACPI_TYPE_METHOD, &method_node);
|
|
if (ACPI_SUCCESS (status)) {
|
|
/*
|
|
* The _REG method is optional and there can be only one per region
|
|
* definition. This will be executed when the handler is attached
|
|
* or removed
|
|
*/
|
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region_obj2->extra.method_REG = method_node;
|
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}
|
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|
|
/*
|
|
* The following loop depends upon the root Node having no parent
|
|
* ie: acpi_gbl_root_node->parent_entry being set to NULL
|
|
*/
|
|
while (node) {
|
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/* Check to see if a handler exists */
|
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|
|
handler_obj = NULL;
|
|
obj_desc = acpi_ns_get_attached_object (node);
|
|
if (obj_desc) {
|
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/* Can only be a handler if the object exists */
|
|
|
|
switch (node->type) {
|
|
case ACPI_TYPE_DEVICE:
|
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|
|
handler_obj = obj_desc->device.handler;
|
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break;
|
|
|
|
case ACPI_TYPE_PROCESSOR:
|
|
|
|
handler_obj = obj_desc->processor.handler;
|
|
break;
|
|
|
|
case ACPI_TYPE_THERMAL:
|
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|
|
handler_obj = obj_desc->thermal_zone.handler;
|
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break;
|
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|
|
default:
|
|
/* Ignore other objects */
|
|
break;
|
|
}
|
|
|
|
while (handler_obj) {
|
|
/* Is this handler of the correct type? */
|
|
|
|
if (handler_obj->address_space.space_id == space_id) {
|
|
/* Found correct handler */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Found handler %p for region %p in obj %p\n",
|
|
handler_obj, region_obj, obj_desc));
|
|
|
|
status = acpi_ev_attach_region (handler_obj, region_obj,
|
|
acpi_ns_locked);
|
|
|
|
/*
|
|
* Tell all users that this region is usable by running the _REG
|
|
* method
|
|
*/
|
|
if (acpi_ns_locked) {
|
|
status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (status)) {
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
}
|
|
|
|
status = acpi_ev_execute_reg_method (region_obj, 1);
|
|
|
|
if (acpi_ns_locked) {
|
|
status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (status)) {
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Try next handler in the list */
|
|
|
|
handler_obj = handler_obj->address_space.next;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This node does not have the handler we need;
|
|
* Pop up one level
|
|
*/
|
|
node = acpi_ns_get_parent_node (node);
|
|
}
|
|
|
|
/* If we get here, there is no handler for this region */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"No handler for region_type %s(%X) (region_obj %p)\n",
|
|
acpi_ut_get_region_name (space_id), space_id, region_obj));
|
|
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|