nsdumpdv.c

h内核

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

/*
 * Copyright (C) 2000 - 2005, R. Byron Moore
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */


#include <acpi/acpi.h>
#include <acpi/acnamesp.h>


#define _COMPONENT          ACPI_NAMESPACE
	 ACPI_MODULE_NAME    ("nsdumpdv")


#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_one_device
 *
 * PARAMETERS:  Handle              - Node to be dumped
 *              Level               - Nesting level of the handle
 *              Context             - Passed into walk_namespace
 *
 * DESCRIPTION: Dump a single Node that represents a device
 *              This procedure is a user_function called by acpi_ns_walk_namespace.
 *
 ******************************************************************************/

acpi_status
acpi_ns_dump_one_device (
	acpi_handle                     obj_handle,
	u32                             level,
	void                            *context,
	void                            **return_value)
{
	struct acpi_buffer              buffer;
	struct acpi_device_info         *info;
	acpi_status                     status;
	u32                             i;


	ACPI_FUNCTION_NAME ("ns_dump_one_device");


	status = acpi_ns_dump_one_object (obj_handle, level, context, return_value);

	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
	status = acpi_get_object_info (obj_handle, &buffer);
	if (ACPI_SUCCESS (status)) {
		info = buffer.pointer;
		for (i = 0; i < level; i++) {
			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_TABLES, " "));
		}

		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_TABLES,
			"    HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
			info->hardware_id.value, ACPI_FORMAT_UINT64 (info->address),
			info->current_status));
		ACPI_MEM_FREE (info);
	}

	return (status);
}


/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_root_devices
 *
 * PARAMETERS:  None
 *
 * DESCRIPTION: Dump all objects of type "device"
 *
 ******************************************************************************/

void
acpi_ns_dump_root_devices (void)
{
	acpi_handle                     sys_bus_handle;
	acpi_status                     status;


	ACPI_FUNCTION_NAME ("ns_dump_root_devices");


	/* Only dump the table if tracing is enabled */

	if (!(ACPI_LV_TABLES & acpi_dbg_level)) {
		return;
	}

	status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle);
	if (ACPI_FAILURE (status)) {
		return;
	}

	ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
		"Display of all devices in the namespace:\n"));

	status = acpi_ns_walk_namespace (ACPI_TYPE_DEVICE, sys_bus_handle,
			 ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
			 acpi_ns_dump_one_device, NULL, NULL);
}

#endif