68 lines
3.0 KiB
C
68 lines
3.0 KiB
C
/* $NetBSD: dmavar.h,v 1.3 1997/03/20 16:01:39 gwr Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Peter Galbavy. 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 Peter Galbavy.
|
|
* 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 dma_softc {
|
|
struct device sc_dev; /* us as a device */
|
|
struct ncr53c9x_softc *sc_esp; /* my scsi */
|
|
struct dma_regs *sc_regs; /* the registers */
|
|
int sc_active; /* DMA active ? */
|
|
u_int sc_rev; /* revision */
|
|
int sc_burst; /* DVMA burst size in effect */
|
|
caddr_t sc_dvmakaddr; /* DVMA cookies */
|
|
caddr_t sc_dvmaaddr; /* */
|
|
u_long sc_dmasaddr; /* Slave address */
|
|
size_t sc_dmasize;
|
|
caddr_t *sc_dmaaddr;
|
|
size_t *sc_dmalen;
|
|
#if 0
|
|
void (*reset)(struct dma_softc *); /* reset routine */
|
|
void (*enintr)(struct dma_softc *); /* enable interrupts */
|
|
int (*isintr)(struct dma_softc *); /* interrupt ? */
|
|
int (*intr)(struct dma_softc *); /* interrupt ! */
|
|
int (*setup)(struct dma_softc *, caddr_t *, size_t *, int, size_t *);
|
|
void (*go)(struct dma_softc *);
|
|
#endif
|
|
};
|
|
|
|
#define DMACSR(sc) (sc->sc_regs->csr)
|
|
#define DMADDR(sc) (sc->sc_regs->addr)
|
|
#define DMACNT(sc) (sc->sc_regs->bcnt)
|
|
|
|
void dmaattach __P((struct device *, struct device *, void *));
|
|
void dma_print_rev __P((struct dma_softc *));
|
|
|
|
void dma_reset __P((struct dma_softc *));
|
|
void dma_enintr __P((struct dma_softc *));
|
|
int dma_isintr __P((struct dma_softc *));
|
|
int dma_setup __P((struct dma_softc *, caddr_t *, size_t *, int, size_t *));
|
|
void dma_go __P((struct dma_softc *));
|
|
|
|
int espdmaintr __P((struct dma_softc *));
|