/*-
 * FreeBSD OSM Library for the aic7xxx aic79xx based Adaptec SCSI controllers
 *
 * Copyright (c) 1994-2002 Justin T. Gibbs.
 * Copyright (c) 2001-2003 Adaptec Inc.
 * 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. The name of the author may not 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 Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
 *
 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic_osm_lib.c#5 $
 */

#include <sys/cdefs.h>
static void     aic_recovery_thread(void *arg);

void
aic_set_recoveryscb(struct aic_softc *aic, struct scb *scb)
{

        if ((scb->flags & SCB_RECOVERY_SCB) == 0) {
                struct scb *list_scb;

                scb->flags |= SCB_RECOVERY_SCB;

                AIC_SCB_DATA(aic)->recovery_scbs++;

                /*
                 * Go through all of our pending SCBs and remove
                 * any scheduled timeouts for them.  We will reschedule
                 * them after we've successfully fixed this problem.
                 */
                LIST_FOREACH(list_scb, &aic->pending_scbs, pending_links) {
                        callout_stop(&scb->io_timer);
                }
        }
}

void
aic_platform_timeout(void *arg)
{
        struct  scb *scb;

        scb = (struct scb *)arg; 
        aic_lock(scb->aic_softc);
        aic_timeout(scb);
        aic_unlock(scb->aic_softc);
}

int
aic_spawn_recovery_thread(struct aic_softc *aic)
{
        int error;

        error = aic_kthread_create(aic_recovery_thread, aic,
                               &aic->platform_data->recovery_thread,
                               /*flags*/0, /*altstack*/0, "aic_recovery%d",
                               aic->unit);
        return (error);
}

/*
 * Lock is not held on entry.
 */
void
aic_terminate_recovery_thread(struct aic_softc *aic)
{

        if (aic->platform_data->recovery_thread == NULL) {
                return;
        }
        aic->flags |= AIC_SHUTDOWN_RECOVERY;
        wakeup(aic);
        /*
         * Sleep on a slightly different location 
         * for this interlock just for added safety.
         */
        msleep(aic->platform_data, &aic->platform_data->mtx, PUSER, "thtrm", 0);
}

static void
aic_recovery_thread(void *arg)
{
        struct aic_softc *aic;

        aic = (struct aic_softc *)arg;
        aic_lock(aic);
        for (;;) {
                
                if (LIST_EMPTY(&aic->timedout_scbs) != 0
                 && (aic->flags & AIC_SHUTDOWN_RECOVERY) == 0)
                        msleep(aic, &aic->platform_data->mtx, PUSER, "idle", 0);

                if ((aic->flags & AIC_SHUTDOWN_RECOVERY) != 0)
                        break;

                aic_recover_commands(aic);
        }
        aic->platform_data->recovery_thread = NULL;
        wakeup(aic->platform_data);
        aic_unlock(aic);
        kproc_exit(0);
}

void
aic_calc_geometry(struct ccb_calc_geometry *ccg, int extended)
{
        cam_calc_geometry(ccg, extended);
}