113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/* $NetBSD: tcdsvar.h,v 1.10 1998/05/26 23:43:05 thorpej Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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struct tcds_slotconfig {
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/*
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* Bookkeeping information
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*/
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int sc_slot;
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bus_space_tag_t sc_bst; /* to frob TCDS regs */
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bus_space_handle_t sc_bsh;
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struct asc_tcds_softc *sc_asc; /* to frob child's regs */
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int (*sc_intrhand) __P((void *)); /* intr. handler */
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void *sc_intrarg; /* intr. handler arg. */
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/*
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* Sets of bits in TCDS CIR and IMER that enable/check
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* various things.
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*/
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u_int32_t sc_resetbits;
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u_int32_t sc_intrmaskbits;
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u_int32_t sc_intrbits;
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u_int32_t sc_dmabits;
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u_int32_t sc_errorbits;
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/*
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* Offsets to slot-specific DMA resources.
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*/
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bus_size_t sc_sda;
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bus_size_t sc_dic;
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bus_size_t sc_dud0;
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bus_size_t sc_dud1;
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/*
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* DMA bookkeeping information.
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*/
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bus_dma_tag_t sc_dmat;
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bus_dmamap_t sc_dmamap;
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int sc_active; /* DMA active ? */
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int sc_iswrite; /* DMA into main memory? */
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size_t sc_dmasize;
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caddr_t *sc_dmaaddr;
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size_t *sc_dmalen;
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};
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struct tcdsdev_attach_args {
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bus_space_tag_t tcdsda_bst; /* bus space tag */
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bus_space_handle_t tcdsda_bsh; /* bus space handle */
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struct tcds_slotconfig *tcdsda_sc; /* slot configuration */
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int tcdsda_chip; /* chip number */
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int tcdsda_id; /* SCSI ID */
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u_int tcdsda_freq; /* chip frequency */
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int tcdsda_period; /* min. sync period */
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int tcdsda_variant; /* NCR chip variant */
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int tcdsda_fast; /* chip does Fast mode */
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};
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/*
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* TCDS functions.
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*/
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void tcds_intr_establish __P((struct device *, int,
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int (*)(void *), void *));
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void tcds_intr_disestablish __P((struct device *, int));
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void tcds_dma_enable __P((struct tcds_slotconfig *, int));
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void tcds_scsi_enable __P((struct tcds_slotconfig *, int));
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int tcds_scsi_iserr __P((struct tcds_slotconfig *));
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int tcds_scsi_isintr __P((struct tcds_slotconfig *, int));
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void tcds_scsi_reset __P((struct tcds_slotconfig *));
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/*
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* TCDS DMA functions (used the the 53c94 driver)
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*/
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int tcds_dma_isintr __P((struct tcds_slotconfig *));
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void tcds_dma_reset __P((struct tcds_slotconfig *));
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int tcds_dma_intr __P((struct tcds_slotconfig *));
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int tcds_dma_setup __P((struct tcds_slotconfig *, caddr_t *, size_t *,
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int, size_t *));
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void tcds_dma_go __P((struct tcds_slotconfig *));
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int tcds_dma_isactive __P((struct tcds_slotconfig *));
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/*
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* TCDS DMA functions (private to TCDS)
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*/
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int tcds_dma_init __P((struct tcds_slotconfig *));
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