/* $OpenBSD: isa_machdep.h,v 1.7 2011/03/23 16:54:34 pirofti Exp $ */ /* $NetBSD: isa_machdep.h,v 1.3 2002/01/07 22:58:07 chris Exp $ */ /*- * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ #ifndef _ARM_ISA_MACHDEP_H_ #define _ARM_ISA_MACHDEP_H_ #include #include #define __NO_ISA_INTR_CHECK /* * Types provided to machine-independent ISA code. */ struct arm32_isa_chipset { /* struct isa_dma_state ic_dmastate; */ }; typedef struct arm32_isa_chipset *isa_chipset_tag_t; struct device; /* XXX */ struct isabus_attach_args; /* XXX */ /* * Functions provided to machine-independent ISA code. */ void isa_attach_hook(struct device *, struct device *, struct isabus_attach_args *); void *isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level, int (*ih_fun)(void *), void *ih_arg, char *name); void isa_intr_disestablish(isa_chipset_tag_t ic, void *handler); #if 0 #define isa_dmainit(ic, bst, dmat, d) \ _isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d)) #define isa_dmacascade(ic, c) \ _isa_dmacascade(&(ic)->ic_dmastate, (c)) #define isa_dmamaxsize(ic, c) \ _isa_dmamaxsize(&(ic)->ic_dmastate, (c)) #define isa_dmamap_create(ic, c, s, f) \ _isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f)) #define isa_dmamap_destroy(ic, c) \ _isa_dmamap_destroy(&(ic)->ic_dmastate, (c)) #define isa_dmastart(ic, c, a, n, p, f, bf) \ _isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf)) #define isa_dmaabort(ic, c) \ _isa_dmaabort(&(ic)->ic_dmastate, (c)) #define isa_dmacount(ic, c) \ _isa_dmacount(&(ic)->ic_dmastate, (c)) #define isa_dmafinished(ic, c) \ _isa_dmafinished(&(ic)->ic_dmastate, (c)) #define isa_dmadone(ic, c) \ _isa_dmadone(&(ic)->ic_dmastate, (c)) #define isa_dmafreeze(ic) \ _isa_dmafreeze(&(ic)->ic_dmastate) #define isa_dmathaw(ic) \ _isa_dmathaw(&(ic)->ic_dmastate) #define isa_dmamem_alloc(ic, c, s, ap, f) \ _isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f)) #define isa_dmamem_free(ic, c, a, s) \ _isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s)) #define isa_dmamem_map(ic, c, a, s, kp, f) \ _isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f)) #define isa_dmamem_unmap(ic, c, k, s) \ _isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s)) #define isa_dmamem_mmap(ic, c, a, s, o, p, f) \ _isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f)) #define isa_drq_alloc(ic, c) \ _isa_drq_alloc(&(ic)->ic_dmastate, c) #define isa_drq_free(ic, c) \ _isa_drq_free(&(ic)->ic_dmastate, c) #define isa_drq_isfree(ic, c) \ _isa_drq_isfree(&(ic)->ic_dmastate, (c)) #define isa_malloc(ic, c, s, p, f) \ _isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f)) #define isa_free(a, p) \ _isa_free((a), (p)) #define isa_mappage(m, o, p) \ _isa_mappage((m), (o), (p)) #endif /* * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED * BY PORTABLE CODE. */ extern struct arm32_bus_dma_tag isa_bus_dma_tag; /* * Cookie used by ISA DMA. A pointer to one of these is stashed in * the DMA map. */ struct arm32_isa_dma_cookie { int id_flags; /* flags; see below */ /* * Information about the original buffer used during * DMA map syncs. Note that origbuflen is only used * for ID_BUFTYPE_LINEAR. */ void *id_origbuf; /* pointer to orig buffer if bouncing */ bus_size_t id_origbuflen; /* ...and size */ int id_buftype; /* type of buffer */ void *id_bouncebuf; /* pointer to the bounce buffer */ bus_size_t id_bouncebuflen; /* ...and size */ int id_nbouncesegs; /* number of valid bounce segs */ bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer physical memory segments */ }; /* id_flags */ #define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */ #define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */ #define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */ /* id_buftype */ #define ID_BUFTYPE_INVALID 0 #define ID_BUFTYPE_LINEAR 1 #define ID_BUFTYPE_MBUF 2 #define ID_BUFTYPE_UIO 3 #define ID_BUFTYPE_RAW 4 /* bus space tags */ extern struct bus_space isa_io_bs_tag; extern struct bus_space isa_mem_bs_tag; /* ISA chipset */ extern struct arm32_isa_chipset isa_chipset_tag; void isa_init(vaddr_t, vaddr_t); void isa_io_init(vaddr_t, vaddr_t); void isa_dma_init(void); vaddr_t isa_io_data_vaddr(void); vaddr_t isa_mem_data_vaddr(void); int isa_intr_alloc(isa_chipset_tag_t ic, int mask, int type, int *irq); void isa_intr_init(void); /* * Miscellaneous functions. */ void isa_fillw(u_int val, void *addr, size_t len); #endif /* _ARM_ISA_MACHDEP_H_ XXX */