159 lines
5.9 KiB
C
159 lines
5.9 KiB
C
/* $NetBSD: mvmebus.h,v 1.5 2000/11/24 09:27:43 scw Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Steve C. Woodford.
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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. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MVMEBUS_H
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#define _MVMEBUS_H
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/*
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* VMEbus master and slave windows are described using
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* instances of this structure.
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*
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* The chip-specific code records the details of the available mappings
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* for the MVME board.
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*/
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struct mvmebus_range {
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vme_am_t vr_am; /* Address modifier (A16, A24, A32) */
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vme_datasize_t vr_datasize; /* Datasize: logical OR of D8,D16,D32 */
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paddr_t vr_locstart; /* CPU-relative address of mapping */
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paddr_t vr_mask; /* Mask to apply to this mapping */
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vme_addr_t vr_vmestart; /* VMEbus start address */
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vme_addr_t vr_vmeend; /* VMEbus end address */
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};
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/* Assigned to vr_am to specify the mapping is not valid */
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#define MVMEBUS_AM_DISABLED ((vme_am_t)-1)
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/* For slave mappings, these specify the slave's capabilities */
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#define MVMEBUS_AM_CAP_DATA 0x0100
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#define MVMEBUS_AM_CAP_PROG 0x0200
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#define MVMEBUS_AM_CAP_BLK 0x0400
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#define MVMEBUS_AM_CAP_BLKD64 0x0800
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#define MVMEBUS_AM_CAP_USER 0x1000
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#define MVMEBUS_AM_CAP_SUPER 0x2000
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#define MVMEBUS_AM_HAS_CAP(x) (((x) & 0x3f00) != 0)
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#define MVMEBUS_AM2CAP(am) (_mvmebus_am_cap[((am) & \
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(VME_AM_MODEMASK | VME_AM_PRIVMASK))])
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/*
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* This records VMEbus-specific details of a region of bus_space_map'd
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* VMEbus address space.
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*/
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struct mvmebus_mapresc {
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bus_space_handle_t mr_handle;
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bus_addr_t mr_addr;
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bus_size_t mr_size;
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vme_am_t mr_am;
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vme_datasize_t mr_datasize;
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int mr_range;
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};
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/*
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* This records the VMEbus-specific details of a region of phyisical
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* memory accessible through a VMEbus slave map.
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*/
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struct mvmebus_dmamap {
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vme_am_t vm_am;
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vme_datasize_t vm_datasize;
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vme_swap_t vm_swap;
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struct mvmebus_range *vm_slave;
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};
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struct mvmebus_softc {
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struct device sc_dev;
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bus_space_tag_t sc_bust;
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bus_dma_tag_t sc_dmat;
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short sc_irqref[8];
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void *sc_chip;
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int sc_nmasters;
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struct mvmebus_range *sc_masters;
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int sc_nslaves;
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struct mvmebus_range *sc_slaves;
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void (*sc_intr_establish)(void *, int, int, int, int,
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int (*)(void *), void *);
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void (*sc_intr_disestablish)(void *, int, int, int);
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struct vme_chipset_tag sc_vct;
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struct mvme68k_bus_dma_tag sc_mvmedmat;
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};
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void mvmebus_attach(struct mvmebus_softc *);
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int mvmebus_map(void *, vme_addr_t, vme_size_t, vme_am_t,
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vme_datasize_t, vme_swap_t, bus_space_tag_t *,
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bus_space_handle_t *, vme_mapresc_t *);
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void mvmebus_unmap(void *, vme_mapresc_t);
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int mvmebus_probe(void *, vme_addr_t, vme_size_t,
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vme_am_t, vme_datasize_t,
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int (*) (void *, bus_space_tag_t, bus_space_handle_t), void *arg);
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int mvmebus_intmap(void *, int, int, vme_intr_handle_t *);
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const struct evcnt *mvmebus_intr_evcnt(void *, vme_intr_handle_t);
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void * mvmebus_intr_establish(void *, vme_intr_handle_t, int,
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int (*) (void *), void *);
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void mvmebus_intr_disestablish(void *, vme_intr_handle_t);
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int mvmebus_dmamap_create(void *, vme_size_t, vme_am_t, vme_datasize_t,
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vme_swap_t, int, vme_size_t, vme_addr_t, int, bus_dmamap_t *);
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void mvmebus_dmamap_destroy(void *, bus_dmamap_t);
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int mvmebus_dmamap_load(bus_dma_tag_t, bus_dmamap_t,
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void *, bus_size_t, struct proc *, int);
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int mvmebus_dmamap_load_mbuf(bus_dma_tag_t,
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bus_dmamap_t, struct mbuf *, int);
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int mvmebus_dmamap_load_uio(bus_dma_tag_t,
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bus_dmamap_t, struct uio *, int);
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int mvmebus_dmamap_load_raw(bus_dma_tag_t,
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bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int);
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void mvmebus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
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void mvmebus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
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bus_size_t, int);
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int mvmebus_dmamem_alloc(void *, vme_size_t, vme_am_t, vme_datasize_t,
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vme_swap_t, bus_dma_segment_t *, int, int *, int);
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void mvmebus_dmamem_free(void *, bus_dma_segment_t *, int);
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int mvmebus_dmamem_map(bus_dma_tag_t, bus_dma_segment_t *, int,
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size_t, caddr_t *, int);
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void mvmebus_dmamem_unmap(bus_dma_tag_t, caddr_t, size_t);
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paddr_t mvmebus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t *, int,
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off_t, int, int);
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extern vme_am_t _mvmebus_am_cap[];
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#endif /* _MVMEBUS_H */
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