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espvar.h revision 1.6 
      1 /*	$NetBSD: espvar.h,v 1.6 1999/01/27 06:37:49 dbj Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1997 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 struct esp_softc {
     41 	struct ncr53c9x_softc sc_ncr53c9x;	/* glue to MI code */
     42 	struct nextdma_config sc_scsi_dma;
     43 	bus_space_tag_t	sc_bst;
     44 	bus_space_handle_t sc_bsh;		/* the device registers */
     45 	bus_dmamap_t  sc_dmamap;			/* i/o dma map */
     46 	int sc_datain;								/* dma direction for map */
     47 	caddr_t sc_slop_bgn_addr;			/* bytes to be fifo'd at beginning */
     48 	caddr_t sc_slop_end_addr;			/* bytes to be fifo'd at end */
     49 	int sc_slop_bgn_size;					/* # bytes to be fifo'd at beginning */
     50 	int sc_slop_end_size;					/* # bytes to be fifo'd at end */
     51 	int sc_dmamap_loaded;					/* 0=not loaded, 1=sc_dmamap, 2=sc_tail_dmamap */
     52 	caddr_t *sc_dmaaddr;
     53 	size_t  *sc_dmalen;
     54 	size_t  sc_dmasize;
     55 #define ESP_DMA_MAXTAIL 128
     56 	caddr_t sc_tail;
     57 	size_t  sc_tail_size;
     58 	char sc_tailbuf[ESP_DMA_MAXTAIL+2*DMA_ENDALIGNMENT];
     59 	bus_dmamap_t  sc_tail_dmamap;
     60 };
     61