NetBSD/sys/dev/mca/edvar.h

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/* $NetBSD: edvar.h,v 1.5 2001/07/08 18:06:46 wiz Exp $ */
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jaromir Dolecek.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 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 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.
*/
struct edc_mca_softc;
#define DASD_MAX_CMD_RES_LEN 8
struct ed_softc {
struct device sc_dev;
/* General disk infos */
struct disk sc_dk;
struct buf_queue sc_q;
struct simplelock sc_q_lock;
struct callout sc_edstart;
void *sc_data; /* pointer to data for transfer */
long sc_bcount; /* bytes available in buffer */
daddr_t sc_rawblkno; /* starting blkno of transfer */
int sc_read; /* Read Transfer ? */
struct edc_mca_softc *edc_softc; /* pointer to our parent */
int sc_flags;
#define WDF_WLABEL 0x001 /* label is writable */
#define WDF_LABELLING 0x002 /* writing label */
#define WDF_LOADED 0x004 /* parameters loaded */
#define WDF_KLABEL 0x008 /* retain label after 'full' close */
#define EDF_BOUNCEBUF 0x010 /* use bounce buffer */
#define EDF_DMAMAP_LOADED 0x020 /* dmamap_xfer loaded */
#define EDF_PROCESS_QUEUE 0x040
#define EDF_DK_BUSY 0x080 /* disk_busy() called */
#define EDF_INIT 0x100 /* disk initialized */
int sc_capacity;
struct lock sc_lock; /* drive lock */
/* actual drive parameters */
int sc_devno; /* DASD device number */
u_int16_t cyl;
u_int8_t heads;
u_int8_t sectors;
u_int8_t spares; /* spares per cylinder */
u_int32_t rba;
u_int8_t drv_flags;
u_int16_t sc_status_block[DASD_MAX_CMD_RES_LEN]; /* CMD status block */
daddr_t sc_badsect[127]; /* 126 plus trailing -1 marker */
/* Info needed for DMA */
bus_dma_tag_t sc_dmat; /* DMA tag as passed by parent */
bus_dmamap_t dmamap_xfer; /* transfer dma map */
#define ED_NSEGS 1
bus_dma_segment_t sc_dmaseg[ED_NSEGS]; /* DMA segment array */
bus_dma_segment_t sc_dmam[1]; /* Allocated DMA-safe memory */
vsize_t sc_dmam_sz; /* Size of allocated DMA memory */
caddr_t sc_dmamkva; /* Mapped kva of the memory */
void *sc_sdhook; /* our shutdown hook */
#if NRND > 0
rndsource_element_t rnd_source;
#endif
struct proc *sc_worker; /* Worker thread */
volatile int sc_error;
};