nsdump.c

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/******************************************************************************
 *
 * Module Name: nsdump - table dumping routines for debug
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2012, Intel Corp.
 * 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 "accommon.h"
#include "acnamesp.h"

#define _COMPONENT          ACPI_NAMESPACE
ACPI_MODULE_NAME("nsdump")

/* Local prototypes */
#ifdef ACPI_OBSOLETE_FUNCTIONS
void acpi_ns_dump_root_devices(void);

static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
            u32 level, void *context, void **return_value);
#endif

#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_print_pathname
 *
 * PARAMETERS:  num_segments        - Number of ACPI name segments
 *              pathname            - The compressed (internal) path
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print an object's full namespace pathname
 *
 ******************************************************************************/

void acpi_ns_print_pathname(u32 num_segments, char *pathname)
{
    u32 i;

    ACPI_FUNCTION_NAME(ns_print_pathname);

    if (!(acpi_dbg_level & ACPI_LV_NAMES)
        || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
        return;
    }

    /* Print the entire name */

    ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));

    while (num_segments) {
        for (i = 0; i < 4; i++) {
            ACPI_IS_PRINT(pathname[i]) ?
                acpi_os_printf("%c", pathname[i]) :
                acpi_os_printf("?");
        }

        pathname += ACPI_NAME_SIZE;
        num_segments--;
        if (num_segments) {
            acpi_os_printf(".");
        }
    }

    acpi_os_printf("]\n");
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_pathname
 *
 * PARAMETERS:  handle              - Object
 *              msg                 - Prefix message
 *              level               - Desired debug level
 *              component           - Caller's component ID
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print an object's full namespace pathname
 *              Manages allocation/freeing of a pathname buffer
 *
 ******************************************************************************/

void
acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
{

    ACPI_FUNCTION_TRACE(ns_dump_pathname);

    /* Do this only if the requested debug level and component are enabled */

    if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
        return_VOID;
    }

    /* Convert handle to a full pathname and print it (with supplied message) */

    acpi_ns_print_node_pathname(handle, msg);
    acpi_os_printf("\n");
    return_VOID;
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_one_object
 *
 * PARAMETERS:  obj_handle          - Node to be dumped
 *              level               - Nesting level of the handle
 *              context             - Passed into walk_namespace
 *              return_value        - Not used
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Dump a single Node
 *              This procedure is a user_function called by acpi_ns_walk_namespace.
 *
 ******************************************************************************/

acpi_status
acpi_ns_dump_one_object(acpi_handle obj_handle,
            u32 level, void *context, void **return_value)
{
    struct acpi_walk_info *info = (struct acpi_walk_info *)context;
    struct acpi_namespace_node *this_node;
    union acpi_operand_object *obj_desc = NULL;
    acpi_object_type obj_type;
    acpi_object_type type;
    u32 bytes_to_dump;
    u32 dbg_level;
    u32 i;

    ACPI_FUNCTION_NAME(ns_dump_one_object);

    /* Is output enabled? */

    if (!(acpi_dbg_level & info->debug_level)) {
        return (AE_OK);
    }

    if (!obj_handle) {
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
        return (AE_OK);
    }

    this_node = acpi_ns_validate_handle(obj_handle);
    if (!this_node) {
        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
                  obj_handle));
        return (AE_OK);
    }

    type = this_node->type;

    /* Check if the owner matches */

    if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
        (info->owner_id != this_node->owner_id)) {
        return (AE_OK);
    }

    if (!(info->display_type & ACPI_DISPLAY_SHORT)) {

        /* Indent the object according to the level */

        acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");

        /* Check the node type and name */

        if (type > ACPI_TYPE_LOCAL_MAX) {
            ACPI_WARNING((AE_INFO,
                      "Invalid ACPI Object Type 0x%08X", type));
        }

        if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
            this_node->name.integer =
                acpi_ut_repair_name(this_node->name.ascii);

            ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
                      this_node->name.integer));
        }

        acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
    }

    /* Now we can print out the pertinent information */

    acpi_os_printf(" %-12s %p %2.2X ",
               acpi_ut_get_type_name(type), this_node,
               this_node->owner_id);

    dbg_level = acpi_dbg_level;
    acpi_dbg_level = 0;
    obj_desc = acpi_ns_get_attached_object(this_node);
    acpi_dbg_level = dbg_level;

    /* Temp nodes are those nodes created by a control method */

    if (this_node->flags & ANOBJ_TEMPORARY) {
        acpi_os_printf("(T) ");
    }

    switch (info->display_type & ACPI_DISPLAY_MASK) {
    case ACPI_DISPLAY_SUMMARY:

        if (!obj_desc) {

            /* No attached object. Some types should always have an object */

            switch (type) {
            case ACPI_TYPE_INTEGER:
            case ACPI_TYPE_PACKAGE:
            case ACPI_TYPE_BUFFER:
            case ACPI_TYPE_STRING:
            case ACPI_TYPE_METHOD:
                acpi_os_printf("<No attached object>");
                break;

            default:
                break;
            }

            acpi_os_printf("\n");
            return (AE_OK);
        }

        switch (type) {
        case ACPI_TYPE_PROCESSOR:

            acpi_os_printf("ID %02X Len %02X Addr %p\n",
                       obj_desc->processor.proc_id,
                       obj_desc->processor.length,
                       ACPI_CAST_PTR(void,
                             obj_desc->processor.
                             address));
            break;

        case ACPI_TYPE_DEVICE:

            acpi_os_printf("Notify Object: %p\n", obj_desc);
            break;

        case ACPI_TYPE_METHOD:

            acpi_os_printf("Args %X Len %.4X Aml %p\n",
                       (u32) obj_desc->method.param_count,
                       obj_desc->method.aml_length,
                       obj_desc->method.aml_start);
            break;

        case ACPI_TYPE_INTEGER:

            acpi_os_printf("= %8.8X%8.8X\n",
                       ACPI_FORMAT_UINT64(obj_desc->integer.
                              value));
            break;

        case ACPI_TYPE_PACKAGE:

            if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
                acpi_os_printf("Elements %.2X\n",
                           obj_desc->package.count);
            } else {
                acpi_os_printf("[Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_BUFFER:

            if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
                acpi_os_printf("Len %.2X",
                           obj_desc->buffer.length);

                /* Dump some of the buffer */

                if (obj_desc->buffer.length > 0) {
                    acpi_os_printf(" =");
                    for (i = 0;
                         (i < obj_desc->buffer.length
                          && i < 12); i++) {
                        acpi_os_printf(" %.2hX",
                                   obj_desc->buffer.
                                   pointer[i]);
                    }
                }
                acpi_os_printf("\n");
            } else {
                acpi_os_printf("[Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_STRING:

            acpi_os_printf("Len %.2X ", obj_desc->string.length);
            acpi_ut_print_string(obj_desc->string.pointer, 32);
            acpi_os_printf("\n");
            break;

        case ACPI_TYPE_REGION:

            acpi_os_printf("[%s]",
                       acpi_ut_get_region_name(obj_desc->region.
                                   space_id));
            if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
                acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
                           ACPI_FORMAT_NATIVE_UINT
                           (obj_desc->region.address),
                           obj_desc->region.length);
            } else {
                acpi_os_printf
                    (" [Address/Length not yet evaluated]\n");
            }
            break;

        case ACPI_TYPE_LOCAL_REFERENCE:

            acpi_os_printf("[%s]\n",
                       acpi_ut_get_reference_name(obj_desc));
            break;

        case ACPI_TYPE_BUFFER_FIELD:

            if (obj_desc->buffer_field.buffer_obj &&
                obj_desc->buffer_field.buffer_obj->buffer.node) {
                acpi_os_printf("Buf [%4.4s]",
                           acpi_ut_get_node_name(obj_desc->
                                     buffer_field.
                                     buffer_obj->
                                     buffer.
                                     node));
            }
            break;

        case ACPI_TYPE_LOCAL_REGION_FIELD:

            acpi_os_printf("Rgn [%4.4s]",
                       acpi_ut_get_node_name(obj_desc->
                                 common_field.
                                 region_obj->region.
                                 node));
            break;

        case ACPI_TYPE_LOCAL_BANK_FIELD:

            acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
                       acpi_ut_get_node_name(obj_desc->
                                 common_field.
                                 region_obj->region.
                                 node),
                       acpi_ut_get_node_name(obj_desc->
                                 bank_field.
                                 bank_obj->
                                 common_field.
                                 node));
            break;

        case ACPI_TYPE_LOCAL_INDEX_FIELD:

            acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
                       acpi_ut_get_node_name(obj_desc->
                                 index_field.
                                 index_obj->
                                 common_field.node),
                       acpi_ut_get_node_name(obj_desc->
                                 index_field.
                                 data_obj->
                                 common_field.
                                 node));
            break;

        case ACPI_TYPE_LOCAL_ALIAS:
        case ACPI_TYPE_LOCAL_METHOD_ALIAS:

            acpi_os_printf("Target %4.4s (%p)\n",
                       acpi_ut_get_node_name(obj_desc),
                       obj_desc);
            break;

        default:

            acpi_os_printf("Object %p\n", obj_desc);
            break;
        }

        /* Common field handling */

        switch (type) {
        case ACPI_TYPE_BUFFER_FIELD:
        case ACPI_TYPE_LOCAL_REGION_FIELD:
        case ACPI_TYPE_LOCAL_BANK_FIELD:
        case ACPI_TYPE_LOCAL_INDEX_FIELD:

            acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
                       (obj_desc->common_field.
                    base_byte_offset * 8)
                       +
                       obj_desc->common_field.
                       start_field_bit_offset,
                       obj_desc->common_field.bit_length,
                       obj_desc->common_field.
                       access_byte_width);
            break;

        default:
            break;
        }
        break;

    case ACPI_DISPLAY_OBJECTS:

        acpi_os_printf("O:%p", obj_desc);
        if (!obj_desc) {

            /* No attached object, we are done */

            acpi_os_printf("\n");
            return (AE_OK);
        }

        acpi_os_printf("(R%u)", obj_desc->common.reference_count);

        switch (type) {
        case ACPI_TYPE_METHOD:

            /* Name is a Method and its AML offset/length are set */

            acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
                       obj_desc->method.aml_length);
            break;

        case ACPI_TYPE_INTEGER:

            acpi_os_printf(" I:%8.8X8.8%X\n",
                       ACPI_FORMAT_UINT64(obj_desc->integer.
                              value));
            break;

        case ACPI_TYPE_STRING:

            acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
                       obj_desc->string.length);
            break;

        case ACPI_TYPE_BUFFER:

            acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
                       obj_desc->buffer.length);
            break;

        default:

            acpi_os_printf("\n");
            break;
        }
        break;

    default:
        acpi_os_printf("\n");
        break;
    }

    /* If debug turned off, done */

    if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
        return (AE_OK);
    }

    /* If there is an attached object, display it */

    dbg_level = acpi_dbg_level;
    acpi_dbg_level = 0;
    obj_desc = acpi_ns_get_attached_object(this_node);
    acpi_dbg_level = dbg_level;

    /* Dump attached objects */

    while (obj_desc) {
        obj_type = ACPI_TYPE_INVALID;
        acpi_os_printf("Attached Object %p: ", obj_desc);

        /* Decode the type of attached object and dump the contents */

        switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
        case ACPI_DESC_TYPE_NAMED:

            acpi_os_printf("(Ptr to Node)\n");
            bytes_to_dump = sizeof(struct acpi_namespace_node);
            ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
            break;

        case ACPI_DESC_TYPE_OPERAND:

            obj_type = obj_desc->common.type;

            if (obj_type > ACPI_TYPE_LOCAL_MAX) {
                acpi_os_printf
                    ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
                     obj_type);
                bytes_to_dump = 32;
            } else {
                acpi_os_printf
                    ("(Pointer to ACPI Object type %.2X [%s])\n",
                     obj_type, acpi_ut_get_type_name(obj_type));
                bytes_to_dump =
                    sizeof(union acpi_operand_object);
            }

            ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
            break;

        default:

            break;
        }

        /* If value is NOT an internal object, we are done */

        if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
            ACPI_DESC_TYPE_OPERAND) {
            goto cleanup;
        }

        /* Valid object, get the pointer to next level, if any */

        switch (obj_type) {
        case ACPI_TYPE_BUFFER:
        case ACPI_TYPE_STRING:
            /*
             * NOTE: takes advantage of common fields between string/buffer
             */
            bytes_to_dump = obj_desc->string.length;
            obj_desc = (void *)obj_desc->string.pointer;
            acpi_os_printf("(Buffer/String pointer %p length %X)\n",
                       obj_desc, bytes_to_dump);
            ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
            goto cleanup;

        case ACPI_TYPE_BUFFER_FIELD:
            obj_desc =
                (union acpi_operand_object *)obj_desc->buffer_field.
                buffer_obj;
            break;

        case ACPI_TYPE_PACKAGE:
            obj_desc = (void *)obj_desc->package.elements;
            break;

        case ACPI_TYPE_METHOD:
            obj_desc = (void *)obj_desc->method.aml_start;
            break;

        case ACPI_TYPE_LOCAL_REGION_FIELD:
            obj_desc = (void *)obj_desc->field.region_obj;
            break;

        case ACPI_TYPE_LOCAL_BANK_FIELD:
            obj_desc = (void *)obj_desc->bank_field.region_obj;
            break;

        case ACPI_TYPE_LOCAL_INDEX_FIELD:
            obj_desc = (void *)obj_desc->index_field.index_obj;
            break;

        default:
            goto cleanup;
        }

        obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
    }

      cleanup:
    acpi_os_printf("\n");
    return (AE_OK);
}

#ifdef ACPI_FUTURE_USAGE
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_objects
 *
 * PARAMETERS:  type                - Object type to be dumped
 *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 *                                    for an effectively unlimited depth.
 *              owner_id            - Dump only objects owned by this ID. Use
 *                                    ACPI_UINT32_MAX to match all owners.
 *              start_handle        - Where in namespace to start/end search
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
 *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 *
 ******************************************************************************/

void
acpi_ns_dump_objects(acpi_object_type type,
             u8 display_type,
             u32 max_depth,
             acpi_owner_id owner_id, acpi_handle start_handle)
{
    struct acpi_walk_info info;
    acpi_status status;

    ACPI_FUNCTION_ENTRY();

    /*
     * Just lock the entire namespace for the duration of the dump.
     * We don't want any changes to the namespace during this time,
     * especially the temporary nodes since we are going to display
     * them also.
     */
    status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE(status)) {
        acpi_os_printf("Could not acquire namespace mutex\n");
        return;
    }

    info.debug_level = ACPI_LV_TABLES;
    info.owner_id = owner_id;
    info.display_type = display_type;

    (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
                     ACPI_NS_WALK_NO_UNLOCK |
                     ACPI_NS_WALK_TEMP_NODES,
                     acpi_ns_dump_one_object, NULL,
                     (void *)&info, NULL);

    (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
}
#endif              /* ACPI_FUTURE_USAGE */

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_entry
 *
 * PARAMETERS:  handle              - Node to be dumped
 *              debug_level         - Output level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump a single Node
 *
 ******************************************************************************/

void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
{
    struct acpi_walk_info info;

    ACPI_FUNCTION_ENTRY();

    info.debug_level = debug_level;
    info.owner_id = ACPI_OWNER_ID_MAX;
    info.display_type = ACPI_DISPLAY_SUMMARY;

    (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
}

#ifdef ACPI_ASL_COMPILER
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_tables
 *
 * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 *                                    NS_ALL to dump the entire namespace
 *              max_depth           - Maximum depth of dump.  Use INT_MAX
 *                                    for an effectively unlimited depth.
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump the name space, or a portion of it.
 *
 ******************************************************************************/

void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
{
    acpi_handle search_handle = search_base;

    ACPI_FUNCTION_TRACE(ns_dump_tables);

    if (!acpi_gbl_root_node) {
        /*
         * If the name space has not been initialized,
         * there is nothing to dump.
         */
        ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
                  "namespace not initialized!\n"));
        return_VOID;
    }

    if (ACPI_NS_ALL == search_base) {

        /* Entire namespace */

        search_handle = acpi_gbl_root_node;
        ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
    }

    acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
                 ACPI_OWNER_ID_MAX, search_handle);
    return_VOID;
}
#endif              /* _ACPI_ASL_COMPILER */
#endif              /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */