59adf08e17
<http://mail-index.netbsd.org/tech-kern/2010/04/02/msg007941.html>, divide each machine's bus.h into bus_defs.h (constants & data types) and bus_funcs.h (macro implementations of bus_space(9) routines and MD prototypes). Note that some bus_space(9) routines' implementation will move to .c files from inline subroutines or macros in .h files. I've only made the split for machine architectures where there is PCI. All of the non-PCI-having architectures will require a similar split. These #include files are not referenced by any (committed) Makefiles or header files, yet. Changes to Makefiles, to <sys/bus.h>, and to some more machine-dependent files will dribble in before I throw the switch.
244 lines
9.4 KiB
C
244 lines
9.4 KiB
C
/* $NetBSD: bus_funcs.h,v 1.1 2011/07/01 17:10:01 dyoung Exp $ */
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/*-
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* Copyright (c) 1996, 1997, 1998, 2001 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 Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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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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*
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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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/*
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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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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 Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SPARC_BUS_FUNCS_H_
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#define _SPARC_BUS_FUNCS_H_
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bus_space_tag_t bus_space_tag_alloc(bus_space_tag_t, void *);
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int bus_space_translate_address_generic(struct openprom_range *,
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int, bus_addr_t *);
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/*
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* Bus space function prototypes.
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* In bus_space_map2(), supply a special virtual address only if you
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* get it from ../sparc/vaddrs.h.
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*/
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int bus_space_map2(
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bus_space_tag_t,
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bus_addr_t,
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bus_size_t,
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int, /*flags*/
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vaddr_t, /*preferred vaddr*/
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bus_space_handle_t *);
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void *bus_intr_establish(
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bus_space_tag_t,
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int, /*bus-specific intr*/
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int, /*device class level,
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see machine/intr.h*/
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int (*)(void *), /*handler*/
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void *); /*handler arg*/
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void *bus_intr_establish2(
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bus_space_tag_t,
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int, /*bus-specific intr*/
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int, /*device class level,
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see machine/intr.h*/
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int (*)(void *), /*handler*/
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void *, /*handler arg*/
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void (*)(void)); /*optional fast vector*/
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#define bus_space_vaddr(t, h) ((void)(t), (void *)(h))
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/*
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* Device space probe assistant.
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* The optional callback function's arguments are:
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* the temporary virtual address
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* the passed `arg' argument
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*/
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int bus_space_probe(
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bus_space_tag_t,
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bus_addr_t,
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bus_size_t, /* probe size */
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size_t, /* offset */
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int, /* flags */
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int (*)(void *, void *), /* callback function */
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void *); /* callback arg */
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/*
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* u_intN_t bus_space_read_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset);
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*
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* Read a 1, 2, 4, or 8 byte quantity from bus space
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* described by tag/handle/offset.
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*/
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#define bus_space_read_1_real(t, h, o) \
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((void)(t), *(volatile uint8_t *)((h) + (o)))
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#define bus_space_read_2_real(t, h, o) \
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((void)(t), *(volatile uint16_t *)((h) + (o)))
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#define bus_space_read_4_real(t, h, o) \
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((void)(t), *(volatile uint32_t *)((h) + (o)))
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#define bus_space_read_8_real(t, h, o) \
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((void)(t), *(volatile uint64_t *)((h) + (o)))
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#define bus_space_read_stream_1 bus_space_read_1_real
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#define bus_space_read_stream_2 bus_space_read_2_real
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#define bus_space_read_stream_4 bus_space_read_4_real
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#define bus_space_read_stream_8 bus_space_read_8_real
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/*
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* void bus_space_write_N(bus_space_tag_t tag,
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* bus_space_handle_t bsh, bus_size_t offset,
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* u_intN_t value);
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*
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* Write the 1, 2, 4, or 8 byte value `value' to bus space
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* described by tag/handle/offset.
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*/
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#define bus_space_write_1_real(t, h, o, v) do { \
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((void)(t), (void)(*(volatile uint8_t *)((h) + (o)) = (v))); \
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} while (/* CONSTCOND */ 0)
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#define bus_space_write_2_real(t, h, o, v) do { \
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((void)(t), (void)(*(volatile uint16_t *)((h) + (o)) = (v))); \
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} while (/* CONSTCOND */ 0)
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#define bus_space_write_4_real(t, h, o, v) do { \
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((void)(t), (void)(*(volatile uint32_t *)((h) + (o)) = (v))); \
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} while (/* CONSTCOND */ 0)
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#define bus_space_write_8_real(t, h, o, v) do { \
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((void)(t), (void)(*(volatile uint64_t *)((h) + (o)) = (v))); \
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} while (/* CONSTCOND */ 0)
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#define bus_space_write_stream_1 bus_space_write_1_real
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#define bus_space_write_stream_2 bus_space_write_2_real
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#define bus_space_write_stream_4 bus_space_write_4_real
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#define bus_space_write_stream_8 bus_space_write_8_real
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#define bus_space_read_multi_stream_1 bus_space_read_multi_1
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#define bus_space_write_multi_stream_1 bus_space_write_multi_1
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/* Forwards needed by prototypes below. */
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struct mbuf;
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struct uio;
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#define bus_dmamap_create(t, s, n, m, b, f, p) \
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(*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p))
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#define bus_dmamap_destroy(t, p) \
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(*(t)->_dmamap_destroy)((t), (p))
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#define bus_dmamap_load(t, m, b, s, p, f) \
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(*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f))
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#define bus_dmamap_load_mbuf(t, m, b, f) \
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(*(t)->_dmamap_load_mbuf)((t), (m), (b), (f))
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#define bus_dmamap_load_uio(t, m, u, f) \
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(*(t)->_dmamap_load_uio)((t), (m), (u), (f))
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#define bus_dmamap_load_raw(t, m, sg, n, s, f) \
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(*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f))
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#define bus_dmamap_unload(t, p) \
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(*(t)->_dmamap_unload)((t), (p))
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#define bus_dmamap_sync(t, p, o, l, ops) \
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(void)((t)->_dmamap_sync ? \
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(*(t)->_dmamap_sync)((t), (p), (o), (l), (ops)) : (void)0)
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#define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
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(*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
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#define bus_dmamem_free(t, sg, n) \
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(*(t)->_dmamem_free)((t), (sg), (n))
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#define bus_dmamem_map(t, sg, n, s, k, f) \
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(*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
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#define bus_dmamem_unmap(t, k, s) \
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(*(t)->_dmamem_unmap)((t), (k), (s))
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#define bus_dmamem_mmap(t, sg, n, o, p, f) \
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(*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
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#define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP
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#define bus_dmatag_destroy(t)
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#ifdef _SPARC_BUS_DMA_PRIVATE
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int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
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bus_size_t, int, bus_dmamap_t *);
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void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
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int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t,
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struct mbuf *, int);
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int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t,
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struct uio *, int);
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int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t,
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bus_dma_segment_t *, int, bus_size_t, int);
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void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
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void _bus_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 _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size,
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bus_size_t alignment, bus_size_t boundary,
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bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags);
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void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs,
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int nsegs);
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void _bus_dmamem_unmap(bus_dma_tag_t tag, void *kva,
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size_t size);
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paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs,
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int nsegs, off_t off, int prot, int flags);
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int _bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size,
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bus_size_t alignment, bus_size_t boundary,
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bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags,
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vaddr_t low, vaddr_t high);
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vaddr_t _bus_dma_valloc_skewed(size_t, u_long, u_long, u_long);
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#endif /* _SPARC_BUS_DMA_PRIVATE */
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#endif /* _SPARC_BUS_FUNCS_H_ */
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