Change the ISA DMA API to take an isa_chipset_tag_t rather than
a struct device * corresponding to the ISA bus device. The ISA DMA controller driver functions have been renamed and now take a struct isa_dma_state *, and are called indirectly by machine-dependent code which provides the DMA state. These changes allow e.g. `ofisa' (the OpenFirmware configuration mechanism for the ISA bus, used by e.g. Sharks) to use the MI ISA DMA controller code.
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@ -1,7 +1,7 @@
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/* $NetBSD: isa_machdep.h,v 1.9 1998/06/03 21:50:48 thorpej Exp $ */
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/* $NetBSD: isa_machdep.h,v 1.10 1998/06/09 00:12:18 thorpej Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* Copyright (c) 1996, 1997, 1998 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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@ -84,6 +84,7 @@
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#define _I386_ISA_MACHDEP_H_ /* XXX */
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#include <machine/bus.h>
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#include <dev/isa/isadmavar.h>
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/*
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* XXX THIS FILE IS A MESS. copyright: berkeley's probably.
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@ -96,7 +97,11 @@
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/*
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* Types provided to machine-independent ISA code.
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*/
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typedef void *isa_chipset_tag_t;
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struct i386_isa_chipset {
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struct isa_dma_state ic_dmastate;
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};
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typedef struct i386_isa_chipset *isa_chipset_tag_t;
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struct device; /* XXX */
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struct isabus_attach_args; /* XXX */
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@ -114,6 +119,43 @@ int isa_mem_alloc __P((bus_space_tag_t, bus_size_t, bus_size_t,
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bus_addr_t, int, bus_addr_t *, bus_space_handle_t *));
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void isa_mem_free __P((bus_space_tag_t, bus_space_handle_t, bus_size_t));
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#define isa_dmainit(ic, bst, dmat, d) \
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_isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d))
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#define isa_dmacascade(ic, c) \
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_isa_dmacascade(&(ic)->ic_dmastate, (c))
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#define isa_dmamap_create(ic, c, s, f) \
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_isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f))
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#define isa_dmamap_destroy(ic, c) \
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_isa_dmamap_destroy(&(ic)->ic_dmastate, (c))
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#define isa_dmastart(ic, c, a, n, p, f, bf) \
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_isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf))
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#define isa_dmaabort(ic, c) \
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_isa_dmaabort(&(ic)->ic_dmastate, (c))
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#define isa_dmacount(ic, c) \
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_isa_dmacount(&(ic)->ic_dmastate, (c))
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#define isa_dmafinished(ic, c) \
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_isa_dmafinished(&(ic)->ic_dmastate, (c))
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#define isa_dmadone(ic, c) \
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_isa_dmadone(&(ic)->ic_dmastate, (c))
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#define isa_dmamem_alloc(ic, c, s, ap, f) \
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_isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f))
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#define isa_dmamem_free(ic, c, a, s) \
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_isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s))
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#define isa_dmamem_map(ic, c, a, s, kp, f) \
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_isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f))
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#define isa_dmamem_unmap(ic, c, k, s) \
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_isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s))
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#define isa_dmamem_mmap(ic, c, a, s, o, p, f) \
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_isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f))
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#define isa_drq_isfree(ic, c) \
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_isa_drq_isfree(&(ic)->ic_dmastate, (c))
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#define isa_malloc(ic, c, s, p, f) \
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_isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f))
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#define isa_free(a, p) \
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_isa_free((a), (p))
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#define isa_mappage(m, o, p) \
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_isa_mappage((m), (o), (p))
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/*
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* ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
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* BY PORTABLE CODE.
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