Example #1
0
/*
 * Helper function to check for memory device
 */
static acpi_status is_memory_device(acpi_handle handle)
{
	char *hardware_id;
	acpi_status status;
	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
	struct acpi_device_info *info;

	ACPI_FUNCTION_TRACE("is_memory_device");

	status = acpi_get_object_info(handle, &buffer);
	if (ACPI_FAILURE(status))
		return_ACPI_STATUS(AE_ERROR);

	info = buffer.pointer;
	if (!(info->valid & ACPI_VALID_HID)) {
		acpi_os_free(buffer.pointer);
		return_ACPI_STATUS(AE_ERROR);
	}

	hardware_id = info->hardware_id.value;
	if ((hardware_id == NULL) ||
	    (strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID)))
		status = AE_ERROR;

	acpi_os_free(buffer.pointer);
	return_ACPI_STATUS(status);
}
Example #2
0
static acpi_status is_processor_device(acpi_handle handle)
{
	struct acpi_device_info *info;
	char *hid;
	acpi_status status;

	status = acpi_get_object_info(handle, &info);
	if (ACPI_FAILURE(status))
		return status;

	if (info->type == ACPI_TYPE_PROCESSOR) {
		kfree(info);
		return AE_OK;	/* found a processor object */
	}

	if (!(info->valid & ACPI_VALID_HID)) {
		kfree(info);
		return AE_ERROR;
	}

	hid = info->hardware_id.string;
	if ((hid == NULL) || strcmp(hid, ACPI_PROCESSOR_DEVICE_HID)) {
		kfree(info);
		return AE_ERROR;
	}

	kfree(info);
	return AE_OK;	/* found a processor device object */
}
Example #3
0
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_one_device
 *
 * PARAMETERS:  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 that represents a device
 *              This procedure is a user_function called by acpi_ns_walk_namespace.
 *
 ******************************************************************************/
static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
			u32 level, void *context, void **return_value)
{
	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);

	status = acpi_get_object_info(obj_handle, &info);
	if (ACPI_SUCCESS(status)) {
		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.string,
				      ACPI_FORMAT_UINT64(info->address),
				      info->current_status));
		ACPI_FREE(info);
	}

	return (status);
}
Example #4
0
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);
}
static int is_root_bridge(acpi_handle handle)
{
	acpi_status status;
	struct acpi_device_info *info;
	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
	int i;

	status = acpi_get_object_info(handle, &buffer);
	if (ACPI_SUCCESS(status)) {
		info = buffer.pointer;
		if ((info->valid & ACPI_VALID_HID) &&
			!strcmp(PCI_ROOT_HID_STRING,
					info->hardware_id.value)) {
			acpi_os_free(buffer.pointer);
			return 1;
		}
		if (info->valid & ACPI_VALID_CID) {
			for (i=0; i < info->compatibility_id.count; i++) {
				if (!strcmp(PCI_ROOT_HID_STRING,
					info->compatibility_id.id[i].value)) {
					acpi_os_free(buffer.pointer);
					return 1;
				}
			}
		}
	}
	return 0;
}
Example #6
0
static acpi_status __init
zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
{
	acpi_handle handle, parent;
	acpi_status status;
	struct acpi_device_info *info;
	u64 lba_hpa, sba_hpa, length;
	int match;

	status = hp_acpi_csr_space(obj, &lba_hpa, &length);
	if (ACPI_FAILURE(status))
		return AE_OK; /* keep looking for another bridge */

	/* Look for an enclosing IOC scope and find its CSR space */
	handle = obj;
	do {
		status = acpi_get_object_info(handle, &info);
		if (ACPI_SUCCESS(status) && (info->valid & ACPI_VALID_HID)) {
			/* TBD check _CID also */
			match = (strcmp(info->hardware_id.string, "HWP0001") == 0);
			kfree(info);
			if (match) {
				status = hp_acpi_csr_space(handle, &sba_hpa, &length);
				if (ACPI_SUCCESS(status))
					break;
				else {
					printk(KERN_ERR PFX "Detected HP ZX1 "
					       "AGP LBA but no IOC.\n");
					return AE_OK;
				}
			}
		}

		status = acpi_get_parent(handle, &parent);
		handle = parent;
	} while (ACPI_SUCCESS(status));

	if (ACPI_FAILURE(status))
		return AE_OK;	/* found no enclosing IOC */

	if (hp_zx1_setup(sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa))
		return AE_OK;

#ifdef CONFIG_DEBUG_PRINTK
	printk(KERN_INFO PFX "Detected HP ZX1 %s AGP chipset "
		"(ioc=%llx, lba=%llx)\n", (char *)context,
		sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa);
#else
	;
#endif

	hp_zx1_gart_found = 1;
	return AE_CTRL_TERMINATE; /* we only support one bridge; quit looking */
}
Example #7
0
static acpi_status
container_walk_namespace_cb(acpi_handle handle,
	u32 lvl,
	void *context,
	void **rv)
{
	char 				*hid = NULL;
	struct acpi_buffer 		buffer = {ACPI_ALLOCATE_BUFFER, NULL};
	struct acpi_device_info 	*info;
	acpi_status 			status;
	int 				*action = context;

	ACPI_FUNCTION_TRACE("container_walk_namespace_cb");

	status = acpi_get_object_info(handle, &buffer);
	if (ACPI_FAILURE(status) || !buffer.pointer) {
		return_ACPI_STATUS(AE_OK);
	}

	info = buffer.pointer;
	if (info->valid & ACPI_VALID_HID)
		hid = info->hardware_id.value;

	if (hid == NULL) {
		goto end;
	}

	if (strcmp(hid, "ACPI0004") && strcmp(hid, "PNP0A05") &&
			strcmp(hid, "PNP0A06")) {
		goto end;
	}

	switch(*action) {
	case INSTALL_NOTIFY_HANDLER:
		acpi_install_notify_handler(handle,
			ACPI_SYSTEM_NOTIFY,
			container_notify_cb,
			NULL);
		break;
	case UNINSTALL_NOTIFY_HANDLER:
		acpi_remove_notify_handler(handle,
			ACPI_SYSTEM_NOTIFY,
			container_notify_cb);
		break;
	default:
		break;
	}

end:
	acpi_os_free(buffer.pointer);

	return_ACPI_STATUS(AE_OK);
}
Example #8
0
/**
 * ide_get_dev_handle - finds acpi_handle and PCI device.function
 * @dev: device to locate
 * @handle: returned acpi_handle for @dev
 * @pcidevfn: return PCI device.func for @dev
 *
 * Returns the ACPI object handle to the corresponding PCI device.
 *
 * Returns 0 on success, <0 on error.
 */
static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
			       acpi_integer *pcidevfn)
{
	struct pci_dev *pdev = to_pci_dev(dev);
	unsigned int bus, devnum, func;
	acpi_integer addr;
	acpi_handle dev_handle;
	struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER,
					.pointer = NULL};
	acpi_status status;
	struct acpi_device_info	*dinfo = NULL;
	int ret = -ENODEV;

	bus = pdev->bus->number;
	devnum = PCI_SLOT(pdev->devfn);
	func = PCI_FUNC(pdev->devfn);
	/* ACPI _ADR encoding for PCI bus: */
	addr = (acpi_integer)(devnum << 16 | func);

	DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func);

	dev_handle = DEVICE_ACPI_HANDLE(dev);
	if (!dev_handle) {
		DEBPRINT("no acpi handle for device\n");
		goto err;
	}

	status = acpi_get_object_info(dev_handle, &buffer);
	if (ACPI_FAILURE(status)) {
		DEBPRINT("get_object_info for device failed\n");
		goto err;
	}
	dinfo = buffer.pointer;
	if (dinfo && (dinfo->valid & ACPI_VALID_ADR) &&
	    dinfo->address == addr) {
		*pcidevfn = addr;
		*handle = dev_handle;
	} else {
		DEBPRINT("get_object_info for device has wrong "
			" address: %llu, should be %u\n",
			dinfo ? (unsigned long long)dinfo->address : -1ULL,
			(unsigned int)addr);
		goto err;
	}

	DEBPRINT("for dev=0x%x.%x, addr=0x%llx, *handle=0x%p\n",
		 devnum, func, (unsigned long long)addr, *handle);
	ret = 0;
err:
	kfree(dinfo);
	return ret;
}
Example #9
0
static acpi_status __init
zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
{
	acpi_handle handle, parent;
	acpi_status status;
	struct acpi_buffer buffer;
	struct acpi_device_info *info;
	u64 lba_hpa, sba_hpa, length;
	int match;

	status = hp_acpi_csr_space(obj, &lba_hpa, &length);
	if (ACPI_FAILURE(status))
		return AE_OK; /* keep looking for another bridge */

	/* Look for an enclosing IOC scope and find its CSR space */
	handle = obj;
	do {
		buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
		status = acpi_get_object_info(handle, &buffer);
		if (ACPI_SUCCESS(status)) {
			/* TBD check _CID also */
			info = buffer.pointer;
			info->hardware_id.value[sizeof(info->hardware_id)-1] = '\0';
			match = (strcmp(info->hardware_id.value, "HWP0001") == 0);
			kfree(info);
			if (match) {
				status = hp_acpi_csr_space(handle, &sba_hpa, &length);
				if (ACPI_SUCCESS(status))
					break;
				else {
					printk(KERN_ERR PFX "Detected HP ZX1 "
					       "AGP LBA but no IOC.\n");
					return AE_OK;
				}
			}
		}

		status = acpi_get_parent(handle, &parent);
		handle = parent;
	} while (ACPI_SUCCESS(status));

	if (hp_zx1_setup(sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa))
		return AE_OK;

	printk(KERN_INFO PFX "Detected HP ZX1 %s AGP chipset "
		"(ioc=%llx, lba=%llx)\n", (char *)context,
		sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa);

	hp_zx1_gart_found = 1;
	return AE_CTRL_TERMINATE; /* we only support one bridge; quit looking */
}
Example #10
0
static acpi_status __init
zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
{
	acpi_handle handle, parent;
	acpi_status status;
	struct acpi_device_info *info;
	u64 lba_hpa, sba_hpa, length;
	int match;

	status = hp_acpi_csr_space(obj, &lba_hpa, &length);
	if (ACPI_FAILURE(status))
		return AE_OK; 

	
	handle = obj;
	do {
		status = acpi_get_object_info(handle, &info);
		if (ACPI_SUCCESS(status)) {
			
			info->hardware_id.string[sizeof(info->hardware_id.length)-1] = '\0';
			match = (strcmp(info->hardware_id.string, "HWP0001") == 0);
			kfree(info);
			if (match) {
				status = hp_acpi_csr_space(handle, &sba_hpa, &length);
				if (ACPI_SUCCESS(status))
					break;
				else {
					printk(KERN_ERR PFX "Detected HP ZX1 "
					       "AGP LBA but no IOC.\n");
					return AE_OK;
				}
			}
		}

		status = acpi_get_parent(handle, &parent);
		handle = parent;
	} while (ACPI_SUCCESS(status));

	if (hp_zx1_setup(sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa))
		return AE_OK;

	printk(KERN_INFO PFX "Detected HP ZX1 %s AGP chipset "
		"(ioc=%llx, lba=%llx)\n", (char *)context,
		sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa);

	hp_zx1_gart_found = 1;
	return AE_CTRL_TERMINATE; 
}
Example #11
0
static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(acpi_handle handle,
							 const char *hid)
{
	const struct sdhci_acpi_slot *slot;
	struct acpi_device_info *info;
	const char *uid = NULL;
	acpi_status status;

	status = acpi_get_object_info(handle, &info);
	if (!ACPI_FAILURE(status) && (info->valid & ACPI_VALID_UID))
		uid = info->unique_id.string;

	slot = sdhci_acpi_get_slot_by_ids(hid, uid);

	kfree(info);
	return slot;
}
Example #12
0
static acpi_status
container_walk_namespace_cb(acpi_handle handle,
			    u32 lvl, void *context, void **rv)
{
	char *hid = NULL;
	struct acpi_device_info *info;
	acpi_status status;
	int *action = context;

	status = acpi_get_object_info(handle, &info);
	if (ACPI_FAILURE(status)) {
		return AE_OK;
	}

	if (info->valid & ACPI_VALID_HID)
		hid = info->hardware_id.string;

	if (hid == NULL) {
		goto end;
	}

	if (strcmp(hid, "ACPI0004") && strcmp(hid, "PNP0A05") &&
	    strcmp(hid, "PNP0A06")) {
		goto end;
	}

	switch (*action) {
	case INSTALL_NOTIFY_HANDLER:
		acpi_install_notify_handler(handle,
					    ACPI_SYSTEM_NOTIFY,
					    container_notify_cb, NULL);
		break;
	case UNINSTALL_NOTIFY_HANDLER:
		acpi_remove_notify_handler(handle,
					   ACPI_SYSTEM_NOTIFY,
					   container_notify_cb);
		break;
	default:
		break;
	}

      end:
	kfree(info);

	return AE_OK;
}
Example #13
0
void acpi_db_display_object_type(char *object_arg)
{
	acpi_handle handle;
	struct acpi_device_info *info;
	acpi_status status;
	u32 i;

	handle = ACPI_TO_POINTER(strtoul(object_arg, NULL, 16));

	status = acpi_get_object_info(handle, &info);
	if (ACPI_FAILURE(status)) {
		acpi_os_printf("Could not get object info, %s\n",
			       acpi_format_exception(status));
		return;
	}

	acpi_os_printf("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n",
		       ACPI_FORMAT_UINT64(info->address),
		       info->current_status, info->flags);

	acpi_os_printf("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
		       info->highest_dstates[0], info->highest_dstates[1],
		       info->highest_dstates[2], info->highest_dstates[3]);

	acpi_os_printf("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
		       info->lowest_dstates[0], info->lowest_dstates[1],
		       info->lowest_dstates[2], info->lowest_dstates[3],
		       info->lowest_dstates[4]);

	if (info->valid & ACPI_VALID_HID) {
		acpi_os_printf("HID: %s\n", info->hardware_id.string);
	}

	if (info->valid & ACPI_VALID_UID) {
		acpi_os_printf("UID: %s\n", info->unique_id.string);
	}

	if (info->valid & ACPI_VALID_CID) {
		for (i = 0; i < info->compatible_id_list.count; i++) {
			acpi_os_printf("CID %u: %s\n", i,
				       info->compatible_id_list.ids[i].string);
		}
	}

	ACPI_FREE(info);
}
Example #14
0
acpi_status
bm_get_identification (
	BM_DEVICE		*device)
{
	acpi_status             status = AE_OK;
	acpi_device_info        info;

	if (!device) {
		return AE_BAD_PARAMETER;
	}

	if (!(device->flags & BM_FLAGS_IDENTIFIABLE)) {
		return AE_OK;
	}

	device->id.uid[0] = BM_UID_UNKNOWN;
	device->id.hid[0] = BM_HID_UNKNOWN;
	device->id.adr = BM_ADDRESS_UNKNOWN;

	/*
	 * Get Object Info:
	 * ----------------
	 * Evalute _UID, _HID, and _ADR...
	 */
	status = acpi_get_object_info(device->acpi_handle, &info);
	if (ACPI_FAILURE(status)) {
		return status;
	}

	if (info.valid & ACPI_VALID_UID) {
		MEMCPY((void*)device->id.uid, (void*)info.unique_id,
			sizeof(BM_DEVICE_UID));
	}

	if (info.valid & ACPI_VALID_HID) {
		MEMCPY((void*)device->id.hid, (void*)info.hardware_id,
			sizeof(BM_DEVICE_HID));
	}

	if (info.valid & ACPI_VALID_ADR) {
		device->id.adr = info.address;
	}

	return status;
}
Example #15
0
acpi_status
ac_add_device(
    BM_HANDLE		device_handle,
    void			**context)
{
    acpi_status 		status = AE_OK;
    BM_DEVICE		*device = NULL;
    AC_CONTEXT		*ac_adapter = NULL;
    acpi_device_info	info;

    FUNCTION_TRACE("ac_add_device");

    ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Adding ac_adapter device [%02x].\n", device_handle));

    if (!context || *context) {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid (NULL) context."));
        return_ACPI_STATUS(AE_BAD_PARAMETER);
    }

    /*
     * Get information on this device.
     */
    status = bm_get_device_info(device_handle, &device);
    if (ACPI_FAILURE(status)) {
        return_ACPI_STATUS(status);
    }

    /*
     * Allocate a new AC_CONTEXT structure.
     */
    ac_adapter = acpi_os_callocate(sizeof(AC_CONTEXT));
    if (!ac_adapter) {
        return_ACPI_STATUS(AE_NO_MEMORY);
    }

    ac_adapter->device_handle = device->handle;
    ac_adapter->acpi_handle = device->acpi_handle;

    /*
     * Get information on this object.
     */
    status = acpi_get_object_info(ac_adapter->acpi_handle, &info);
    if (ACPI_FAILURE(status)) {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Unable to get object info for ac_adapter device."));
        goto end;
    }

    /*
     * _UID?
     * -----
     */
    if (info.valid & ACPI_VALID_UID) {
        strncpy(ac_adapter->uid, info.unique_id, sizeof(info.unique_id));
    }
    else {
        strncpy(ac_adapter->uid, "0", sizeof("0"));
    }

    /*
     * _STA?
     * -----
     */
    if (!(info.valid & ACPI_VALID_STA)) {
        ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Must have valid _STA.\n"));
        status = AE_ERROR;
        goto end;
    }

    status = ac_osl_add_device(ac_adapter);
    if (ACPI_FAILURE(status)) {
        goto end;
    }

    *context = ac_adapter;

    ac_print(ac_adapter);

end:
    if (ACPI_FAILURE(status)) {
        acpi_os_free(ac_adapter);
    }

    return_ACPI_STATUS(status);
}
Example #16
0
static acpi_status
acpi_db_bus_walk(acpi_handle obj_handle,
		 u32 nesting_level, void *context, void **return_value)
{
	struct acpi_namespace_node *node =
	    (struct acpi_namespace_node *)obj_handle;
	acpi_status status;
	struct acpi_buffer buffer;
	struct acpi_namespace_node *temp_node;
	struct acpi_device_info *info;
	u32 i;

	if ((node->type != ACPI_TYPE_DEVICE) &&
	    (node->type != ACPI_TYPE_PROCESSOR)) {
		return (AE_OK);
	}

	/* Exit if there is no _PRT under this device */

	status = acpi_get_handle(node, METHOD_NAME__PRT,
				 ACPI_CAST_PTR(acpi_handle, &temp_node));
	if (ACPI_FAILURE(status)) {
		return (AE_OK);
	}

	/* Get the full path to this device object */

	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
	status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
	if (ACPI_FAILURE(status)) {
		acpi_os_printf("Could Not get pathname for object %p\n",
			       obj_handle);
		return (AE_OK);
	}

	status = acpi_get_object_info(obj_handle, &info);
	if (ACPI_FAILURE(status)) {
		return (AE_OK);
	}

	/* Display the full path */

	acpi_os_printf("%-32s Type %X", (char *)buffer.pointer, node->type);
	ACPI_FREE(buffer.pointer);

	if (info->flags & ACPI_PCI_ROOT_BRIDGE) {
		acpi_os_printf(" - Is PCI Root Bridge");
	}
	acpi_os_printf("\n");

	/* _PRT info */

	acpi_os_printf("_PRT: %p\n", temp_node);

	/* Dump _ADR, _HID, _UID, _CID */

	if (info->valid & ACPI_VALID_ADR) {
		acpi_os_printf("_ADR: %8.8X%8.8X\n",
			       ACPI_FORMAT_UINT64(info->address));
	} else {
		acpi_os_printf("_ADR: <Not Present>\n");
	}

	if (info->valid & ACPI_VALID_HID) {
		acpi_os_printf("_HID: %s\n", info->hardware_id.string);
	} else {
		acpi_os_printf("_HID: <Not Present>\n");
	}

	if (info->valid & ACPI_VALID_UID) {
		acpi_os_printf("_UID: %s\n", info->unique_id.string);
	} else {
		acpi_os_printf("_UID: <Not Present>\n");
	}

	if (info->valid & ACPI_VALID_CID) {
		for (i = 0; i < info->compatible_id_list.count; i++) {
			acpi_os_printf("_CID: %s\n",
				       info->compatible_id_list.ids[i].string);
		}
	} else {
		acpi_os_printf("_CID: <Not Present>\n");
	}

	ACPI_FREE(info);
	return (AE_OK);
}
Example #17
0
static acpi_status
acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle,
				     u32 nesting_level,
				     void *context, void **return_value)
{
	struct acpi_namespace_node *node =
	    (struct acpi_namespace_node *)obj_handle;
	struct acpi_db_execute_walk *info =
	    (struct acpi_db_execute_walk *)context;
	char *pathname;
	const union acpi_predefined_info *predefined;
	struct acpi_device_info *obj_info;
	struct acpi_object_list param_objects;
	union acpi_object params[ACPI_METHOD_NUM_ARGS];
	union acpi_object *this_param;
	struct acpi_buffer return_obj;
	acpi_status status;
	u16 arg_type_list;
	u8 arg_count;
	u8 arg_type;
	u32 i;

	/* The name must be a predefined ACPI name */

	predefined = acpi_ut_match_predefined_method(node->name.ascii);
	if (!predefined) {
		return (AE_OK);
	}

	if (node->type == ACPI_TYPE_LOCAL_SCOPE) {
		return (AE_OK);
	}

	pathname = acpi_ns_get_normalized_pathname(node, TRUE);
	if (!pathname) {
		return (AE_OK);
	}

	/* Get the object info for number of method parameters */

	status = acpi_get_object_info(obj_handle, &obj_info);
	if (ACPI_FAILURE(status)) {
		ACPI_FREE(pathname);
		return (status);
	}

	param_objects.count = 0;
	param_objects.pointer = NULL;

	if (obj_info->type == ACPI_TYPE_METHOD) {

		/* Setup default parameters (with proper types) */

		arg_type_list = predefined->info.argument_list;
		arg_count = METHOD_GET_ARG_COUNT(arg_type_list);

		/*
		 * Setup the ACPI-required number of arguments, regardless of what
		 * the actual method defines. If there is a difference, then the
		 * method is wrong and a warning will be issued during execution.
		 */
		this_param = params;
		for (i = 0; i < arg_count; i++) {
			arg_type = METHOD_GET_NEXT_TYPE(arg_type_list);
			this_param->type = arg_type;

			switch (arg_type) {
			case ACPI_TYPE_INTEGER:

				this_param->integer.value = 1;
				break;

			case ACPI_TYPE_STRING:

				this_param->string.pointer =
				    "This is the default argument string";
				this_param->string.length =
				    strlen(this_param->string.pointer);
				break;

			case ACPI_TYPE_BUFFER:

				this_param->buffer.pointer = (u8 *)params;	/* just a garbage buffer */
				this_param->buffer.length = 48;
				break;

			case ACPI_TYPE_PACKAGE:

				this_param->package.elements = NULL;
				this_param->package.count = 0;
				break;

			default:

				acpi_os_printf
				    ("%s: Unsupported argument type: %u\n",
				     pathname, arg_type);
				break;
			}

			this_param++;
		}

		param_objects.count = arg_count;
		param_objects.pointer = params;
	}

	ACPI_FREE(obj_info);
	return_obj.pointer = NULL;
	return_obj.length = ACPI_ALLOCATE_BUFFER;

	/* Do the actual method execution */

	acpi_gbl_method_executing = TRUE;

	status = acpi_evaluate_object(node, NULL, &param_objects, &return_obj);

	acpi_os_printf("%-32s returned %s\n",
		       pathname, acpi_format_exception(status));
	acpi_gbl_method_executing = FALSE;
	ACPI_FREE(pathname);

	/* Ignore status from method execution */

	status = AE_OK;

	/* Update count, check if we have executed enough methods */

	info->count++;
	if (info->count >= info->max_count) {
		status = AE_CTRL_TERMINATE;
	}

	return (status);
}