/* $OpenBSD: twevar.h,v 1.5 2002/09/17 13:45:38 mickey Exp $ */ /* * Copyright (c) 2000 Michael Shalayeff * 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. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Michael Shalayeff. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 HIS RELATIVES 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 MIND, 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. */ struct twe_softc; struct twe_ccb { struct twe_softc *ccb_sc; struct twe_cmd *ccb_cmd; struct scsi_xfer *ccb_xs; paddr_t ccb_cmdpa; TAILQ_ENTRY(twe_ccb) ccb_link; enum { TWE_CCB_FREE, TWE_CCB_READY, TWE_CCB_QUEUED, TWE_CCB_PREQUEUED, TWE_CCB_DONE } ccb_state; int ccb_length; void *ccb_data; void *ccb_realdata; bus_dmamap_t ccb_dmamap; bus_dma_segment_t ccb_2bseg[TWE_MAXOFFSETS]; int ccb_2nseg; }; typedef TAILQ_HEAD(twe_queue_head, twe_ccb) twe_queue_head; struct twe_softc { struct device sc_dev; void *sc_ih; struct scsi_link sc_link; struct lock sc_lock; struct proc *sc_thread; int sc_thread_on; bus_space_tag_t iot; bus_space_handle_t ioh; bus_dma_tag_t dmat; void *sc_cmds; bus_dmamap_t sc_cmdmap; bus_dma_segment_t sc_cmdseg[1]; struct twe_ccb sc_ccbs[TWE_MAXCMDS]; twe_queue_head sc_free_ccb; twe_queue_head sc_ccbq; twe_queue_head sc_ccb2q; twe_queue_head sc_done_ccb; struct timeout sc_enqueue_tmo; struct { int hd_present; int hd_devtype; int hd_lock; int hd_secs; int hd_heads; int hd_size; } sc_hdr[TWE_MAX_UNITS]; }; /* XXX These have to become spinlocks in case of SMP */ #define TWE_LOCK(sc) splbio() #define TWE_UNLOCK(sc, lock) splx(lock) typedef int twe_lock_t; void tweminphys(struct buf *bp); int twe_attach(struct twe_softc *); int twe_intr(void *);