3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * CDDL HEADER START
3db86aab554edbb4244c8d1a1c90f152eee768afstevel *
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * The contents of this file are subject to the terms of the
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * Common Development and Distribution License (the "License").
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * You may not use this file except in compliance with the License.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel *
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * or http://www.opensolaris.org/os/licensing.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * See the License for the specific language governing permissions
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * and limitations under the License.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel *
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * When distributing Covered Code, include this CDDL HEADER in each
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * If applicable, add the following below this CDDL HEADER, with the
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * fields enclosed by brackets "[]" replaced with your own identifying
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * information: Portions Copyright [yyyy] [name of copyright owner]
3db86aab554edbb4244c8d1a1c90f152eee768afstevel *
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * CDDL HEADER END
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
193974072f41a843678abf5f61979c748687e66bSherry Moore * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * Use is subject to license terms.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/types.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/conf.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/ddi.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/sunddi.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/ddi_impldefs.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/ddi_subrdefs.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/obpdefs.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/cmn_err.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/errno.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/kmem.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/debug.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/sysmacros.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/autoconf.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel#include <sys/modctl.h>
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * module central.c
3db86aab554edbb4244c8d1a1c90f152eee768afstevel *
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * This module is a nexus driver designed to support the fhc nexus driver
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * and all children below it. This driver does not handle any of the
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * DDI functions passed up to it by the fhc driver, but instead allows
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * them to bubble up to the root node. A consequence of this is that
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * the maintainer of this code must watch for changes in the sun4u
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * rootnexus driver to make sure they do not break this driver or any
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * of its children.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * Function Prototypes
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic int
3db86aab554edbb4244c8d1a1c90f152eee768afstevelcentral_attach(dev_info_t *devi, ddi_attach_cmd_t cmd);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic int
3db86aab554edbb4244c8d1a1c90f152eee768afstevelcentral_detach(dev_info_t *devi, ddi_detach_cmd_t cmd);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * Configuration Data Structures
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic struct bus_ops central_bus_ops = {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel BUSO_REV,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_bus_map, /* map */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* get_intrspec */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* add_intrspec */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* remove_intrspec */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel i_ddi_map_fault, /* map_fault */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_map, /* dma_map */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_allochdl,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_freehdl,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_bindhdl,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_unbindhdl,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_flush,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_dma_win,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_dma_mctl, /* dma_ctl */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_ctlops, /* ctl */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_bus_prop_op, /* prop_op */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_get_eventcookie)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_add_eventcall)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_remove_eventcall)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_post_event)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_intr_ctl)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_config)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_unconfig)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_fm_init)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_fm_fini)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_fm_access_enter)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_fm_access_exit)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* (*bus_power)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel i_ddi_intr_ops /* (*bus_intr_op)(); */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel};
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic struct dev_ops central_ops = {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel DEVO_REV, /* rev */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel 0, /* refcnt */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_no_info, /* getinfo */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel nulldev, /* identify */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel nulldev, /* probe */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel central_attach, /* attach */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel central_detach, /* detach */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel nulldev, /* reset */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel (struct cb_ops *)0, /* cb_ops */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel &central_bus_ops, /* bus_ops */
193974072f41a843678abf5f61979c748687e66bSherry Moore nulldev, /* power */
193974072f41a843678abf5f61979c748687e66bSherry Moore ddi_quiesce_not_needed, /* quiesce */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel};
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelextern struct mod_ops mod_driverops;
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic struct modldrv modldrv = {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel &mod_driverops, /* Type of module. This one is a driver */
193974072f41a843678abf5f61979c748687e66bSherry Moore "Central Nexus", /* Name of module. */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel &central_ops, /* driver ops */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel};
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic struct modlinkage modlinkage = {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel MODREV_1, /* rev */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel (void *)&modldrv,
3db86aab554edbb4244c8d1a1c90f152eee768afstevel NULL
3db86aab554edbb4244c8d1a1c90f152eee768afstevel};
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/*
3db86aab554edbb4244c8d1a1c90f152eee768afstevel * These are the module initialization routines.
3db86aab554edbb4244c8d1a1c90f152eee768afstevel */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelint
3db86aab554edbb4244c8d1a1c90f152eee768afstevel_init(void)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel{
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (mod_install(&modlinkage));
3db86aab554edbb4244c8d1a1c90f152eee768afstevel}
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelint
3db86aab554edbb4244c8d1a1c90f152eee768afstevel_fini(void)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel{
3db86aab554edbb4244c8d1a1c90f152eee768afstevel int error;
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel if ((error = mod_remove(&modlinkage)) != 0)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (error);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (0);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel}
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelint
3db86aab554edbb4244c8d1a1c90f152eee768afstevel_info(struct modinfo *modinfop)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel{
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (mod_info(&modlinkage, modinfop));
3db86aab554edbb4244c8d1a1c90f152eee768afstevel}
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic int
3db86aab554edbb4244c8d1a1c90f152eee768afstevelcentral_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel{
3db86aab554edbb4244c8d1a1c90f152eee768afstevel switch (cmd) {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel case DDI_ATTACH:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel break;
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel case DDI_RESUME:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (DDI_SUCCESS);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel default:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (DDI_FAILURE);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel }
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel /* nothing to suspend/resume here */
3db86aab554edbb4244c8d1a1c90f152eee768afstevel (void) ddi_prop_update_string(DDI_DEV_T_NONE, devi,
193974072f41a843678abf5f61979c748687e66bSherry Moore "pm-hardware-state", "no-suspend-resume");
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel ddi_report_dev(devi);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (DDI_SUCCESS);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel}
3db86aab554edbb4244c8d1a1c90f152eee768afstevel
3db86aab554edbb4244c8d1a1c90f152eee768afstevel/* ARGSUSED */
3db86aab554edbb4244c8d1a1c90f152eee768afstevelstatic int
3db86aab554edbb4244c8d1a1c90f152eee768afstevelcentral_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
3db86aab554edbb4244c8d1a1c90f152eee768afstevel{
3db86aab554edbb4244c8d1a1c90f152eee768afstevel switch (cmd) {
3db86aab554edbb4244c8d1a1c90f152eee768afstevel case DDI_SUSPEND:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel case DDI_DETACH:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel default:
3db86aab554edbb4244c8d1a1c90f152eee768afstevel return (DDI_FAILURE);
3db86aab554edbb4244c8d1a1c90f152eee768afstevel }
3db86aab554edbb4244c8d1a1c90f152eee768afstevel}