99 lines
3.7 KiB
C
99 lines
3.7 KiB
C
/* $NetBSD: edvar.h,v 1.4 2001/05/04 12:58:34 jdolecek Exp $ */
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/*
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jaromir Dolecek.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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struct edc_mca_softc;
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#define DASD_MAX_CMD_RES_LEN 8
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struct ed_softc {
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struct device sc_dev;
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/* General disk infos */
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struct disk sc_dk;
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struct buf_queue sc_q;
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struct simplelock sc_q_lock;
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struct callout sc_edstart;
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void *sc_data; /* pointer to data for tranfer */
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long sc_bcount; /* bytes available in buffer */
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daddr_t sc_rawblkno; /* starting blkno of transfer */
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int sc_read; /* Read Transfer ? */
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struct edc_mca_softc *edc_softc; /* pointer to our parent */
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int sc_flags;
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#define WDF_WLABEL 0x001 /* label is writable */
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#define WDF_LABELLING 0x002 /* writing label */
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#define WDF_LOADED 0x004 /* parameters loaded */
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#define WDF_KLABEL 0x008 /* retain label after 'full' close */
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#define EDF_BOUNCEBUF 0x010 /* use bounce buffer */
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#define EDF_DMAMAP_LOADED 0x020 /* dmamap_xfer loaded */
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#define EDF_PROCESS_QUEUE 0x040
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#define EDF_DK_BUSY 0x080 /* disk_busy() called */
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#define EDF_INIT 0x100 /* disk initialized */
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int sc_capacity;
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struct lock sc_lock; /* drive lock */
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/* actual drive parameters */
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int sc_devno; /* DASD device number */
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u_int16_t cyl;
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u_int8_t heads;
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u_int8_t sectors;
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u_int8_t spares; /* spares per cylinder */
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u_int32_t rba;
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u_int8_t drv_flags;
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u_int16_t sc_status_block[DASD_MAX_CMD_RES_LEN]; /* CMD status block */
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daddr_t sc_badsect[127]; /* 126 plus trailing -1 marker */
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/* Info needed for DMA */
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bus_dma_tag_t sc_dmat; /* DMA tag as passed by parent */
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bus_dmamap_t dmamap_xfer; /* transfer dma map */
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#define ED_NSEGS 1
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bus_dma_segment_t sc_dmaseg[ED_NSEGS]; /* DMA segment array */
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bus_dma_segment_t sc_dmam[1]; /* Allocated DMA-safe memory */
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vsize_t sc_dmam_sz; /* Size of allocated DMA memory */
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caddr_t sc_dmamkva; /* Mapped kva of the memory */
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void *sc_sdhook; /* our shutdown hook */
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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struct proc *sc_worker; /* Worker thread */
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volatile int sc_error;
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};
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