1394/adapters/hci1394.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */


/*
 * hci1394.c
 *    1394 (firewire) OpenHCI 1.0 HBA driver. This file contains the driver's
 *    _init(), _info(), and _fini().
 */

#include <sys/modctl.h>
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>

#include <sys/1394/ieee1394.h>
#include <sys/1394/h1394.h>

#include <sys/1394/adapters/hci1394.h>


/* HAL State Pointer */
void *hci1394_statep;

/* Character/Block Operations */
static struct cb_ops hci1394_cb_ops = {
    hci1394_open,       /* open */
    hci1394_close,      /* close */
    nodev,          /* strategy (block) */
    nodev,          /* print (block) */
    nodev,          /* dump (block) */
    nodev,          /* read */
    nodev,          /* write */
    hci1394_ioctl,      /* ioctl */
    nodev,          /* devmap */
    nodev,          /* mmap */
    nodev,          /* segmap */
    nochpoll,       /* chpoll */
    ddi_prop_op,        /* prop_op */
    NULL,           /* streams */
    D_NEW | D_MP |
    D_64BIT | D_HOTPLUG,    /* flags */
    CB_REV          /* rev */
};

/* Driver Operations */
static struct dev_ops hci1394_ops = {
    DEVO_REV,       /* struct rev */
    0,          /* refcnt */
    hci1394_getinfo,    /* getinfo */
    nulldev,        /* identify */
    nulldev,        /* probe */
    hci1394_attach,     /* attach */
    hci1394_detach,     /* detach */
    nodev,          /* reset */
    &hci1394_cb_ops,    /* cb_ops */
    NULL,           /* bus_ops */
    NULL,           /* power */
    hci1394_quiesce,    /* devo_quiesce */
};

/* Module Driver Info */
static struct modldrv hci1394_modldrv = {
    &mod_driverops,
    "1394 OpenHCI HBA driver",
    &hci1394_ops
};

/* Module Linkage */
static struct modlinkage hci1394_modlinkage = {
    MODREV_1,
    &hci1394_modldrv,
    NULL
};

#ifndef NPROBE
extern int tnf_mod_load(void);
extern int tnf_mod_unload(struct modlinkage *mlp);
#endif

int
_init()
{
    int status;


#ifndef NPROBE
    (void) tnf_mod_load();
#endif
    TNF_PROBE_0_DEBUG(hci1394_init_enter, HCI1394_TNF_HAL_STACK, "");

    status = ddi_soft_state_init(&hci1394_statep, sizeof (hci1394_state_t),
        (size_t)HCI1394_INITIAL_STATES);
    if (status != 0) {
        TNF_PROBE_2(hci1394_init_ssi_fail, HCI1394_TNF_HAL_ERROR, "",
            tnf_string, errmsg, "failed in ddi_soft_state_init",
            tnf_int, error, status);
        TNF_PROBE_0_DEBUG(hci1394_init_exit, HCI1394_TNF_HAL_STACK, "");
#ifndef NPROBE
        (void) tnf_mod_unload(&hci1394_modlinkage);
#endif
        return (status);
    }

    /* Call into services layer to init bus-ops */
    status = h1394_init(&hci1394_modlinkage);
    if (status != 0) {
        TNF_PROBE_2(hci1394_init_h1394_fail, HCI1394_TNF_HAL_ERROR, "",
            tnf_string, errmsg, "failed in h1394_init",
            tnf_int, error, status);
        TNF_PROBE_0_DEBUG(hci1394_init_exit, HCI1394_TNF_HAL_STACK, "");
#ifndef NPROBE
        (void) tnf_mod_unload(&hci1394_modlinkage);
#endif
        return (status);
    }

    status = mod_install(&hci1394_modlinkage);
    if (status != 0) {
        TNF_PROBE_2(hci1394_init_modi_fail, HCI1394_TNF_HAL_ERROR, "",
            tnf_string, errmsg, "failed in mod_install",
            tnf_int, error, status);
        ddi_soft_state_fini(&hci1394_statep);
#ifndef NPROBE
        (void) tnf_mod_unload(&hci1394_modlinkage);
#endif
        return (status);
    }

    TNF_PROBE_0_DEBUG(hci1394_init_exit, HCI1394_TNF_HAL_STACK, "");

    return (status);
}


int
_info(struct modinfo *modinfop)
{
    int status;

    TNF_PROBE_0_DEBUG(hci1394_info_enter, HCI1394_TNF_HAL_STACK, "");
    status = mod_info(&hci1394_modlinkage, modinfop);
    TNF_PROBE_0_DEBUG(hci1394_info_exit, HCI1394_TNF_HAL_STACK, "");

    return (status);
}


int
_fini()
{
    int status;

    TNF_PROBE_0_DEBUG(hci1394_fini_enter, HCI1394_TNF_HAL_STACK, "");

    status = mod_remove(&hci1394_modlinkage);
    if (status != 0) {
        TNF_PROBE_2(hci1394_fini_modr_fail, HCI1394_TNF_HAL_ERROR, "",
            tnf_string, errmsg, "failed in mod_remove",
            tnf_int, error, status);
        TNF_PROBE_0_DEBUG(hci1394_fini_exit, HCI1394_TNF_HAL_STACK, "");
        return (status);
    }

    /* Call into services layer notify about _fini */
    h1394_fini(&hci1394_modlinkage);
    ddi_soft_state_fini(&hci1394_statep);

    TNF_PROBE_0_DEBUG(hci1394_fini_exit, HCI1394_TNF_HAL_STACK, "");

#ifndef NPROBE
    (void) tnf_mod_unload(&hci1394_modlinkage);
#endif

    return (status);
}