コード例 #1
0
acpi_status acpi_ev_install_fadt_gpes(void)
{
    acpi_status status;

    ACPI_FUNCTION_TRACE(ev_install_fadt_gpes);

    /* Namespace must be locked */

    status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
    if (ACPI_FAILURE(status)) {
        return (status);
    }

    /* FADT GPE Block 0 */

    (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
                                       acpi_gbl_gpe_fadt_blocks[0]);

    /* FADT GPE Block 1 */

    (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
                                       acpi_gbl_gpe_fadt_blocks[1]);

    (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
    return_ACPI_STATUS(AE_OK);
}
コード例 #2
0
ファイル: evxfevnt.c プロジェクト: 1703011/asuswrt-merlin
/*******************************************************************************
 *
 * FUNCTION:    acpi_install_gpe_block
 *
 * PARAMETERS:  gpe_device          - Handle to the parent GPE Block Device
 *              gpe_block_address   - Address and space_iD
 *              register_count      - Number of GPE register pairs in the block
 *              interrupt_number    - H/W interrupt for the block
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Create and Install a block of GPE registers
 *
 ******************************************************************************/
acpi_status
acpi_install_gpe_block(acpi_handle gpe_device,
		       struct acpi_generic_address *gpe_block_address,
		       u32 register_count, u32 interrupt_number)
{
	acpi_status status;
	union acpi_operand_object *obj_desc;
	struct acpi_namespace_node *node;
	struct acpi_gpe_block_info *gpe_block;

	ACPI_FUNCTION_TRACE(acpi_install_gpe_block);

	if ((!gpe_device) || (!gpe_block_address) || (!register_count)) {
		return_ACPI_STATUS(AE_BAD_PARAMETER);
	}

	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		return (status);
	}

	node = acpi_ns_validate_handle(gpe_device);
	if (!node) {
		status = AE_BAD_PARAMETER;
		goto unlock_and_exit;
	}

	/*
	 * For user-installed GPE Block Devices, the gpe_block_base_number
	 * is always zero
	 */
	status =
	    acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0,
				     interrupt_number, &gpe_block);
	if (ACPI_FAILURE(status)) {
		goto unlock_and_exit;
	}

	/* Install block in the device_object attached to the node */

	obj_desc = acpi_ns_get_attached_object(node);
	if (!obj_desc) {

		/*
		 * No object, create a new one (Device nodes do not always have
		 * an attached object)
		 */
		obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE);
		if (!obj_desc) {
			status = AE_NO_MEMORY;
			goto unlock_and_exit;
		}

		status =
		    acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_DEVICE);

		/* Remove local reference to the object */

		acpi_ut_remove_reference(obj_desc);

		if (ACPI_FAILURE(status)) {
			goto unlock_and_exit;
		}
	}

	/* Now install the GPE block in the device_object */

	obj_desc->device.gpe_block = gpe_block;

	/* Enable the runtime GPEs in the new block */

	status = acpi_ev_initialize_gpe_block(node, gpe_block);

      unlock_and_exit:
	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
	return_ACPI_STATUS(status);
}