109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
/* $NetBSD: tcdsvar.h,v 1.3 1996/04/12 06:10:18 cgd 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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struct tcds_softc *sc_tcds; /* to frob TCDS regs */
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struct esp_softc *sc_esp; /* 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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* Pointers to slot-specific DMA resources.
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*/
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volatile u_int32_t *sc_sda;
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volatile u_int32_t *sc_dic;
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volatile u_int32_t *sc_dud0;
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volatile u_int32_t *sc_dud1;
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/*
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* DMA bookkeeping information.
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*/
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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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struct tc_attach_args tcdsda_ta;
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struct tcds_slotconfig *tcdsda_sc;
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u_int tcdsda_id;
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u_int tcdsda_freq;
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};
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#define tcdsda_modname tcdsda_ta.ta_modname
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#define tcdsda_slot tcdsda_ta.ta_slot
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#define tcdsda_offset tcdsda_ta.ta_offset
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#define tcdsda_addr tcdsda_ta.ta_addr
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#define tcdsda_cookie tcdsda_ta.ta_cookie
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#define TCDS_REG(base, off) \
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(volatile u_int32_t *)TC_DENSE_TO_SPARSE((base) + (off))
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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 *, void *, tc_intrlevel_t,
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int (*)(void *), void *));
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void tcds_intr_disestablish __P((struct device *, void *));
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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_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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void tcds_dma_reset __P((struct tcds_slotconfig *));
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void tcds_dma_enintr __P((struct tcds_slotconfig *));
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int tcds_dma_isintr __P((struct tcds_slotconfig *));
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void tcds_dma_start __P((struct tcds_slotconfig *, caddr_t *,
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size_t *, int));
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int tcds_dmaintr __P((struct tcds_slotconfig *));
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/*
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* The TCDS (bus) cfdriver, so that subdevices can more
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* easily tell what bus they're on.
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*/
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extern struct cfdriver tcds_cd;
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