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779 lines
27 KiB
C
779 lines
27 KiB
C
/* $NetBSD: bus.h,v 1.11 2003/07/28 17:35:54 thorpej 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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* 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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/*
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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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* $FreeBSD$
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*/
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#ifndef _MACHINE_BUS_H_
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#define _MACHINE_BUS_H_
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/*
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* Addresses (in bus space).
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*/
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typedef u_long bus_addr_t;
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typedef u_long bus_size_t;
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/*
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* Access methods for bus space.
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*/
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typedef struct bus_space *bus_space_tag_t;
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typedef u_long bus_space_handle_t;
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/*
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* int bus_space_map (bus_space_tag_t t, bus_addr_t addr,
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* bus_size_t size, int flags, bus_space_handle_t *bshp);
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*
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* Map a region of bus space.
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*/
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#define BUS_SPACE_MAP_CACHEABLE 0x01
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#define BUS_SPACE_MAP_LINEAR 0x02
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#define BUS_SPACE_MAP_PREFETCHABLE 0x04
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struct bus_space {
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/* cookie */
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void *bs_cookie;
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/* mapping/unmapping */
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int (*bs_map) (void *, bus_addr_t, bus_size_t,
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int, bus_space_handle_t *);
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void (*bs_unmap) (void *, bus_size_t);
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int (*bs_subregion) (void *, bus_space_handle_t,
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bus_size_t, bus_size_t, bus_space_handle_t *);
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/* allocation/deallocation */
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int (*bs_alloc) (void *, bus_addr_t, bus_addr_t,
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bus_size_t, bus_size_t, bus_size_t, int,
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bus_addr_t *, bus_space_handle_t *);
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void (*bs_free) (void *, bus_space_handle_t,
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bus_size_t);
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/* get kernel virtual address */
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/* barrier */
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void (*bs_barrier) (void *, bus_space_handle_t,
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bus_size_t, bus_size_t, int);
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/* read (single) */
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u_int8_t (*bs_r_1) (void *, bus_space_handle_t, bus_size_t);
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u_int16_t (*bs_r_2) (void *, bus_space_handle_t, bus_size_t);
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u_int32_t (*bs_r_4) (void *, bus_space_handle_t, bus_size_t);
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u_int64_t (*bs_r_8) (void *, bus_space_handle_t, bus_size_t);
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/* read multiple */
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void (*bs_rm_1) (void *, bus_space_handle_t, bus_size_t,
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u_int8_t *, bus_size_t);
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void (*bs_rm_2) (void *, bus_space_handle_t, bus_size_t,
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u_int16_t *, bus_size_t);
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void (*bs_rm_4) (void *, bus_space_handle_t,
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bus_size_t, u_int32_t *, bus_size_t);
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void (*bs_rm_8) (void *, bus_space_handle_t,
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bus_size_t, u_int64_t *, bus_size_t);
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/* read region */
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void (*bs_rr_1) (void *, bus_space_handle_t,
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bus_size_t, u_int8_t *, bus_size_t);
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void (*bs_rr_2) (void *, bus_space_handle_t,
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bus_size_t, u_int16_t *, bus_size_t);
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void (*bs_rr_4) (void *, bus_space_handle_t,
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bus_size_t, u_int32_t *, bus_size_t);
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void (*bs_rr_8) (void *, bus_space_handle_t,
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bus_size_t, u_int64_t *, bus_size_t);
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/* write (single) */
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void (*bs_w_1) (void *, bus_space_handle_t,
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bus_size_t, u_int8_t);
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void (*bs_w_2) (void *, bus_space_handle_t,
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bus_size_t, u_int16_t);
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void (*bs_w_4) (void *, bus_space_handle_t,
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bus_size_t, u_int32_t);
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void (*bs_w_8) (void *, bus_space_handle_t,
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bus_size_t, u_int64_t);
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/* write multiple */
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void (*bs_wm_1) (void *, bus_space_handle_t,
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bus_size_t, const u_int8_t *, bus_size_t);
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void (*bs_wm_2) (void *, bus_space_handle_t,
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bus_size_t, const u_int16_t *, bus_size_t);
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void (*bs_wm_4) (void *, bus_space_handle_t,
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bus_size_t, const u_int32_t *, bus_size_t);
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void (*bs_wm_8) (void *, bus_space_handle_t,
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bus_size_t, const u_int64_t *, bus_size_t);
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/* write region */
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void (*bs_wr_1) (void *, bus_space_handle_t,
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bus_size_t, const u_int8_t *, bus_size_t);
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void (*bs_wr_2) (void *, bus_space_handle_t,
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bus_size_t, const u_int16_t *, bus_size_t);
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void (*bs_wr_4) (void *, bus_space_handle_t,
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bus_size_t, const u_int32_t *, bus_size_t);
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void (*bs_wr_8) (void *, bus_space_handle_t,
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bus_size_t, const u_int64_t *, bus_size_t);
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/* set multiple */
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void (*bs_sm_1) (void *, bus_space_handle_t,
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bus_size_t, u_int8_t, bus_size_t);
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void (*bs_sm_2) (void *, bus_space_handle_t,
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bus_size_t, u_int16_t, bus_size_t);
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void (*bs_sm_4) (void *, bus_space_handle_t,
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bus_size_t, u_int32_t, bus_size_t);
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void (*bs_sm_8) (void *, bus_space_handle_t,
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bus_size_t, u_int64_t, bus_size_t);
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/* set region */
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void (*bs_sr_1) (void *, bus_space_handle_t,
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bus_size_t, u_int8_t, bus_size_t);
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void (*bs_sr_2) (void *, bus_space_handle_t,
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bus_size_t, u_int16_t, bus_size_t);
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void (*bs_sr_4) (void *, bus_space_handle_t,
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bus_size_t, u_int32_t, bus_size_t);
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void (*bs_sr_8) (void *, bus_space_handle_t,
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bus_size_t, u_int64_t, bus_size_t);
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/* copy */
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void (*bs_c_1) (void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t);
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void (*bs_c_2) (void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t);
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void (*bs_c_4) (void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t);
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void (*bs_c_8) (void *, bus_space_handle_t, bus_size_t,
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bus_space_handle_t, bus_size_t, bus_size_t);
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};
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/*
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* Utility macros; INTERNAL USE ONLY.
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*/
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#define __bs_c(a,b) __CONCAT(a,b)
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#define __bs_opname(op,size) __bs_c(__bs_c(__bs_c(bs_,op),_),size)
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#define __bs_rs(sz, t, h, o) \
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(*(t)->__bs_opname(r,sz))((t)->bs_cookie, h, o)
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#define __bs_ws(sz, t, h, o, v) \
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(*(t)->__bs_opname(w,sz))((t)->bs_cookie, h, o, v)
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#define __bs_nonsingle(type, sz, t, h, o, a, c) \
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(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, a, c)
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#define __bs_set(type, sz, t, h, o, v, c) \
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(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, v, c)
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#define __bs_copy(sz, t, h1, o1, h2, o2, cnt) \
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(*(t)->__bs_opname(c,sz))((t)->bs_cookie, h1, o1, h2, o2, cnt)
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/*
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* Mapping and unmapping operations.
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*/
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#define bus_space_map(t, a, s, c, hp) \
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(*(t)->bs_map)((t)->bs_cookie, (a), (s), (c), (hp))
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#define bus_space_unmap(t, h, s) \
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(*(t)->bs_unmap)((t)->bs_cookie, (h), (s))
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#define bus_space_subregion(t, h, o, s, hp) \
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(*(t)->bs_subregion)((t)->bs_cookie, (h), (o), (s), (hp))
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/*
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* Allocation and deallocation operations.
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*/
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#define bus_space_alloc(t, rs, re, s, a, b, c, ap, hp) \
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(*(t)->bs_alloc)((t)->bs_cookie, (rs), (re), (s), (a), (b), \
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(c), (ap), (hp))
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#define bus_space_free(t, h, s) \
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(*(t)->bs_free)((t)->bs_cookie, (h), (s))
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/*
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* Bus barrier operations.
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*/
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#define bus_space_barrier(t, h, o, l, f) \
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(*(t)->bs_barrier)((t)->bs_cookie, (h), (o), (l), (f))
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#define BUS_SPACE_BARRIER_READ 0x01
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#define BUS_SPACE_BARRIER_WRITE 0x02
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/*
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* Bus read (single) operations.
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*/
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#define bus_space_read_1(t, h, o) __bs_rs(1,(t),(h),(o))
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#define bus_space_read_2(t, h, o) __bs_rs(2,(t),(h),(o))
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#define bus_space_read_4(t, h, o) __bs_rs(4,(t),(h),(o))
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#define bus_space_read_8(t, h, o) __bs_rs(8,(t),(h),(o))
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/*
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* Bus read multiple operations.
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*/
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#define bus_space_read_multi_1(t, h, o, a, c) \
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__bs_nonsingle(rm,1,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_2(t, h, o, a, c) \
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__bs_nonsingle(rm,2,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_4(t, h, o, a, c) \
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__bs_nonsingle(rm,4,(t),(h),(o),(a),(c))
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#define bus_space_read_multi_8(t, h, o, a, c) \
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__bs_nonsingle(rm,8,(t),(h),(o),(a),(c))
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/*
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* Bus read region operations.
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*/
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#define bus_space_read_region_1(t, h, o, a, c) \
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__bs_nonsingle(rr,1,(t),(h),(o),(a),(c))
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#define bus_space_read_region_2(t, h, o, a, c) \
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__bs_nonsingle(rr,2,(t),(h),(o),(a),(c))
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#define bus_space_read_region_4(t, h, o, a, c) \
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__bs_nonsingle(rr,4,(t),(h),(o),(a),(c))
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#define bus_space_read_region_8(t, h, o, a, c) \
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__bs_nonsingle(rr,8,(t),(h),(o),(a),(c))
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/*
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* Bus write (single) operations.
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*/
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#define bus_space_write_1(t, h, o, v) __bs_ws(1,(t),(h),(o),(v))
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#define bus_space_write_2(t, h, o, v) __bs_ws(2,(t),(h),(o),(v))
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#define bus_space_write_4(t, h, o, v) __bs_ws(4,(t),(h),(o),(v))
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#define bus_space_write_8(t, h, o, v) __bs_ws(8,(t),(h),(o),(v))
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/*
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* Bus write multiple operations.
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*/
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#define bus_space_write_multi_1(t, h, o, a, c) \
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__bs_nonsingle(wm,1,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_2(t, h, o, a, c) \
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__bs_nonsingle(wm,2,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_4(t, h, o, a, c) \
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__bs_nonsingle(wm,4,(t),(h),(o),(a),(c))
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#define bus_space_write_multi_8(t, h, o, a, c) \
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__bs_nonsingle(wm,8,(t),(h),(o),(a),(c))
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/*
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* Bus write region operations.
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*/
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#define bus_space_write_region_1(t, h, o, a, c) \
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__bs_nonsingle(wr,1,(t),(h),(o),(a),(c))
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#define bus_space_write_region_2(t, h, o, a, c) \
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__bs_nonsingle(wr,2,(t),(h),(o),(a),(c))
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#define bus_space_write_region_4(t, h, o, a, c) \
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__bs_nonsingle(wr,4,(t),(h),(o),(a),(c))
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#define bus_space_write_region_8(t, h, o, a, c) \
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__bs_nonsingle(wr,8,(t),(h),(o),(a),(c))
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/*
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* Set multiple operations.
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*/
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#define bus_space_set_multi_1(t, h, o, v, c) \
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__bs_set(sm,1,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_2(t, h, o, v, c) \
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__bs_set(sm,2,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_4(t, h, o, v, c) \
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__bs_set(sm,4,(t),(h),(o),(v),(c))
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#define bus_space_set_multi_8(t, h, o, v, c) \
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__bs_set(sm,8,(t),(h),(o),(v),(c))
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/*
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* Set region operations.
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*/
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#define bus_space_set_region_1(t, h, o, v, c) \
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__bs_set(sr,1,(t),(h),(o),(v),(c))
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#define bus_space_set_region_2(t, h, o, v, c) \
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__bs_set(sr,2,(t),(h),(o),(v),(c))
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#define bus_space_set_region_4(t, h, o, v, c) \
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__bs_set(sr,4,(t),(h),(o),(v),(c))
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#define bus_space_set_region_8(t, h, o, v, c) \
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__bs_set(sr,8,(t),(h),(o),(v),(c))
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/*
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* Copy operations.
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*/
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#define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
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__bs_copy(1, t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
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__bs_copy(2, t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
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__bs_copy(4, t, h1, o1, h2, o2, c)
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#define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \
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__bs_copy(8, t, h1, o1, h2, o2, c)
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/*
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* Macros to provide prototypes for all the functions used in the
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* bus_space structure
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*/
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#define bs_map_proto(f) \
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int __bs_c(f,_bs_map) (void *t, bus_addr_t addr, \
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bus_size_t size, int cacheable, bus_space_handle_t *bshp);
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#define bs_unmap_proto(f) \
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void __bs_c(f,_bs_unmap) (void *t, bus_size_t size);
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#define bs_subregion_proto(f) \
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int __bs_c(f,_bs_subregion) (void *t, bus_space_handle_t bsh, \
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bus_size_t offset, bus_size_t size, \
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bus_space_handle_t *nbshp);
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#define bs_alloc_proto(f) \
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int __bs_c(f,_bs_alloc) (void *t, bus_addr_t rstart, \
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bus_addr_t rend, bus_size_t size, bus_size_t align, \
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bus_size_t boundary, int cacheable, bus_addr_t *addrp, \
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bus_space_handle_t *bshp);
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#define bs_free_proto(f) \
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void __bs_c(f,_bs_free) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t size);
|
|
|
|
#define bs_mmap_proto(f) \
|
|
int __bs_c(f,_bs_mmap) (struct cdev *, vm_offset_t, vm_paddr_t *, int);
|
|
|
|
#define bs_barrier_proto(f) \
|
|
void __bs_c(f,_bs_barrier) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, bus_size_t len, int flags);
|
|
|
|
#define bs_r_1_proto(f) \
|
|
u_int8_t __bs_c(f,_bs_r_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset);
|
|
|
|
#define bs_r_2_proto(f) \
|
|
u_int16_t __bs_c(f,_bs_r_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset);
|
|
|
|
#define bs_r_4_proto(f) \
|
|
u_int32_t __bs_c(f,_bs_r_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset);
|
|
|
|
#define bs_r_8_proto(f) \
|
|
u_int64_t __bs_c(f,_bs_r_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset);
|
|
|
|
#define bs_w_1_proto(f) \
|
|
void __bs_c(f,_bs_w_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int8_t value);
|
|
|
|
#define bs_w_2_proto(f) \
|
|
void __bs_c(f,_bs_w_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int16_t value);
|
|
|
|
#define bs_w_4_proto(f) \
|
|
void __bs_c(f,_bs_w_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int32_t value);
|
|
|
|
#define bs_w_8_proto(f) \
|
|
void __bs_c(f,_bs_w_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int64_t value);
|
|
|
|
#define bs_rm_1_proto(f) \
|
|
void __bs_c(f,_bs_rm_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int8_t *addr, bus_size_t count);
|
|
|
|
#define bs_rm_2_proto(f) \
|
|
void __bs_c(f,_bs_rm_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int16_t *addr, bus_size_t count);
|
|
|
|
#define bs_rm_4_proto(f) \
|
|
void __bs_c(f,_bs_rm_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int32_t *addr, bus_size_t count);
|
|
|
|
#define bs_rm_8_proto(f) \
|
|
void __bs_c(f,_bs_rm_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int64_t *addr, bus_size_t count);
|
|
|
|
#define bs_wm_1_proto(f) \
|
|
void __bs_c(f,_bs_wm_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int8_t *addr, bus_size_t count);
|
|
|
|
#define bs_wm_2_proto(f) \
|
|
void __bs_c(f,_bs_wm_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int16_t *addr, bus_size_t count);
|
|
|
|
#define bs_wm_4_proto(f) \
|
|
void __bs_c(f,_bs_wm_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int32_t *addr, bus_size_t count);
|
|
|
|
#define bs_wm_8_proto(f) \
|
|
void __bs_c(f,_bs_wm_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int64_t *addr, bus_size_t count);
|
|
|
|
#define bs_rr_1_proto(f) \
|
|
void __bs_c(f, _bs_rr_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int8_t *addr, bus_size_t count);
|
|
|
|
#define bs_rr_2_proto(f) \
|
|
void __bs_c(f, _bs_rr_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int16_t *addr, bus_size_t count);
|
|
|
|
#define bs_rr_4_proto(f) \
|
|
void __bs_c(f, _bs_rr_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int32_t *addr, bus_size_t count);
|
|
|
|
#define bs_rr_8_proto(f) \
|
|
void __bs_c(f, _bs_rr_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int64_t *addr, bus_size_t count);
|
|
|
|
#define bs_wr_1_proto(f) \
|
|
void __bs_c(f, _bs_wr_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int8_t *addr, bus_size_t count);
|
|
|
|
#define bs_wr_2_proto(f) \
|
|
void __bs_c(f, _bs_wr_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int16_t *addr, bus_size_t count);
|
|
|
|
#define bs_wr_4_proto(f) \
|
|
void __bs_c(f, _bs_wr_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int32_t *addr, bus_size_t count);
|
|
|
|
#define bs_wr_8_proto(f) \
|
|
void __bs_c(f, _bs_wr_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, const u_int64_t *addr, bus_size_t count);
|
|
|
|
#define bs_sm_1_proto(f) \
|
|
void __bs_c(f,_bs_sm_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int8_t value, bus_size_t count);
|
|
|
|
#define bs_sm_2_proto(f) \
|
|
void __bs_c(f,_bs_sm_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int16_t value, bus_size_t count);
|
|
|
|
#define bs_sm_4_proto(f) \
|
|
void __bs_c(f,_bs_sm_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int32_t value, bus_size_t count);
|
|
|
|
#define bs_sm_8_proto(f) \
|
|
void __bs_c(f,_bs_sm_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int64_t value, bus_size_t count);
|
|
|
|
#define bs_sr_1_proto(f) \
|
|
void __bs_c(f,_bs_sr_1) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int8_t value, bus_size_t count);
|
|
|
|
#define bs_sr_2_proto(f) \
|
|
void __bs_c(f,_bs_sr_2) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int16_t value, bus_size_t count);
|
|
|
|
#define bs_sr_4_proto(f) \
|
|
void __bs_c(f,_bs_sr_4) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int32_t value, bus_size_t count);
|
|
|
|
#define bs_sr_8_proto(f) \
|
|
void __bs_c(f,_bs_sr_8) (void *t, bus_space_handle_t bsh, \
|
|
bus_size_t offset, u_int64_t value, bus_size_t count);
|
|
|
|
#define bs_c_1_proto(f) \
|
|
void __bs_c(f,_bs_c_1) (void *t, bus_space_handle_t bsh1, \
|
|
bus_size_t offset1, bus_space_handle_t bsh2, \
|
|
bus_size_t offset2, bus_size_t count);
|
|
|
|
#define bs_c_2_proto(f) \
|
|
void __bs_c(f,_bs_c_2) (void *t, bus_space_handle_t bsh1, \
|
|
bus_size_t offset1, bus_space_handle_t bsh2, \
|
|
bus_size_t offset2, bus_size_t count);
|
|
|
|
#define bs_c_4_proto(f) \
|
|
void __bs_c(f,_bs_c_4) (void *t, bus_space_handle_t bsh1, \
|
|
bus_size_t offset1, bus_space_handle_t bsh2, \
|
|
bus_size_t offset2, bus_size_t count);
|
|
|
|
#define bs_c_8_proto(f) \
|
|
void __bs_c(f,_bs_c_8) (void *t, bus_space_handle_t bsh1, \
|
|
bus_size_t offset1, bus_space_handle_t bsh2, \
|
|
bus_size_t offset2, bus_size_t count);
|
|
|
|
#define bs_protos(f) \
|
|
bs_map_proto(f); \
|
|
bs_unmap_proto(f); \
|
|
bs_subregion_proto(f); \
|
|
bs_alloc_proto(f); \
|
|
bs_free_proto(f); \
|
|
bs_mmap_proto(f); \
|
|
bs_barrier_proto(f); \
|
|
bs_r_1_proto(f); \
|
|
bs_r_2_proto(f); \
|
|
bs_r_4_proto(f); \
|
|
bs_r_8_proto(f); \
|
|
bs_w_1_proto(f); \
|
|
bs_w_2_proto(f); \
|
|
bs_w_4_proto(f); \
|
|
bs_w_8_proto(f); \
|
|
bs_rm_1_proto(f); \
|
|
bs_rm_2_proto(f); \
|
|
bs_rm_4_proto(f); \
|
|
bs_rm_8_proto(f); \
|
|
bs_wm_1_proto(f); \
|
|
bs_wm_2_proto(f); \
|
|
bs_wm_4_proto(f); \
|
|
bs_wm_8_proto(f); \
|
|
bs_rr_1_proto(f); \
|
|
bs_rr_2_proto(f); \
|
|
bs_rr_4_proto(f); \
|
|
bs_rr_8_proto(f); \
|
|
bs_wr_1_proto(f); \
|
|
bs_wr_2_proto(f); \
|
|
bs_wr_4_proto(f); \
|
|
bs_wr_8_proto(f); \
|
|
bs_sm_1_proto(f); \
|
|
bs_sm_2_proto(f); \
|
|
bs_sm_4_proto(f); \
|
|
bs_sm_8_proto(f); \
|
|
bs_sr_1_proto(f); \
|
|
bs_sr_2_proto(f); \
|
|
bs_sr_4_proto(f); \
|
|
bs_sr_8_proto(f); \
|
|
bs_c_1_proto(f); \
|
|
bs_c_2_proto(f); \
|
|
bs_c_4_proto(f); \
|
|
bs_c_8_proto(f);
|
|
|
|
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
|
|
|
|
/* Bus Space DMA macros */
|
|
|
|
/*
|
|
* Flags used in various bus DMA methods.
|
|
*/
|
|
#define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
|
|
#define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
|
|
#define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
|
|
#define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */
|
|
#define BUS_DMA_ZERO 0x008 /* hint: sequential, unidirectional */
|
|
#define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */
|
|
#define BUS_DMA_BUS2 0x020
|
|
#define BUS_DMA_BUS3 0x040
|
|
#define BUS_DMA_BUS4 0x080
|
|
|
|
/* Forwards needed by prototypes below. */
|
|
struct mbuf;
|
|
struct uio;
|
|
|
|
/*
|
|
* Operations performed by bus_dmamap_sync().
|
|
*/
|
|
#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */
|
|
#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */
|
|
#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */
|
|
#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */
|
|
|
|
typedef struct bus_dma_tag *bus_dma_tag_t;
|
|
typedef struct bus_dmamap *bus_dmamap_t;
|
|
|
|
#define BUS_DMA_TAG_VALID(t) ((t) != (bus_dma_tag_t)0)
|
|
|
|
/*
|
|
* bus_dma_segment_t
|
|
*
|
|
* Describes a single contiguous DMA transaction. Values
|
|
* are suitable for programming into DMA registers.
|
|
*/
|
|
struct bus_dma_segment {
|
|
/*
|
|
* PUBLIC MEMBERS: these are used by machine-independent code.
|
|
*/
|
|
bus_addr_t ds_addr; /* DMA address */
|
|
bus_size_t ds_len; /* length of transfer */
|
|
};
|
|
typedef struct bus_dma_segment bus_dma_segment_t;
|
|
|
|
/*
|
|
* arm32_dma_range
|
|
*
|
|
* This structure describes a valid DMA range.
|
|
*/
|
|
struct arm32_dma_range {
|
|
bus_addr_t dr_sysbase; /* system base address */
|
|
bus_addr_t dr_busbase; /* appears here on bus */
|
|
bus_size_t dr_len; /* length of range */
|
|
};
|
|
|
|
/*
|
|
* bus_dma_tag_t
|
|
*
|
|
* A machine-dependent opaque type describing the implementation of
|
|
* DMA for a given bus.
|
|
*/
|
|
|
|
typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
|
|
typedef int bus_dmasync_op_t;
|
|
typedef void bus_dmamap_callback2_t(void *, bus_dma_segment_t *, int, bus_size_t, int);
|
|
|
|
|
|
#ifdef _ARM32_BUS_DMA_PRIVATE
|
|
|
|
/* _dm_buftype */
|
|
#define ARM32_BUFTYPE_INVALID 0
|
|
#define ARM32_BUFTYPE_LINEAR 1
|
|
#define ARM32_BUFTYPE_MBUF 2
|
|
#define ARM32_BUFTYPE_UIO 3
|
|
#define ARM32_BUFTYPE_RAW 4
|
|
|
|
struct arm32_dma_range *bus_dma_get_range(void);
|
|
int bus_dma_get_range_nb(void);
|
|
#endif /* _ARM32_BUS_DMA_PRIVATE */
|
|
|
|
/*
|
|
* A function that returns 1 if the address cannot be accessed by
|
|
* a device and 0 if it can be.
|
|
*/
|
|
typedef int bus_dma_filter_t(void *, bus_addr_t);
|
|
|
|
/*
|
|
* A function that performs driver-specific syncronization on behalf of
|
|
* busdma.
|
|
*/
|
|
typedef enum {
|
|
BUS_DMA_LOCK = 0x01,
|
|
BUS_DMA_UNLOCK = 0x02,
|
|
} bus_dma_lock_op_t;
|
|
|
|
typedef void bus_dma_lock_t(void *, bus_dma_lock_op_t);
|
|
|
|
/*
|
|
* Allocate a device specific dma_tag encapsulating the constraints of
|
|
* the parent tag in addition to other restrictions specified:
|
|
*
|
|
* alignment: alignment for segments.
|
|
* boundary: Boundary that segments cannot cross.
|
|
* lowaddr: Low restricted address that cannot appear in a mapping.
|
|
* highaddr: High restricted address that cannot appear in a mapping.
|
|
* filtfunc: An optional function to further test if an address
|
|
* within the range of lowaddr and highaddr cannot appear
|
|
* in a mapping.
|
|
* filtfuncarg: An argument that will be passed to filtfunc in addition
|
|
* to the address to test.
|
|
* maxsize: Maximum mapping size supported by this tag.
|
|
* nsegments: Number of discontinuities allowed in maps.
|
|
* maxsegsz: Maximum size of a segment in the map.
|
|
* flags: Bus DMA flags.
|
|
* dmat: A pointer to set to a valid dma tag should the return
|
|
* value of this function indicate success.
|
|
*/
|
|
int bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
|
|
bus_size_t boundary, bus_addr_t lowaddr,
|
|
bus_addr_t highaddr, bus_dma_filter_t *filtfunc,
|
|
void *filtfuncarg, bus_size_t maxsize, int nsegments,
|
|
bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc,
|
|
void *lockfuncarg, bus_dma_tag_t *dmat);
|
|
|
|
int bus_dma_tag_destroy(bus_dma_tag_t dmat);
|
|
|
|
int bus_dmamap_create (bus_dma_tag_t, int, bus_dmamap_t *);
|
|
int bus_dmamap_destroy (bus_dma_tag_t, bus_dmamap_t);
|
|
int bus_dmamap_load (bus_dma_tag_t, bus_dmamap_t, void *,
|
|
bus_size_t, bus_dmamap_callback_t *, void *, int);
|
|
int bus_dmamap_load_mbuf (bus_dma_tag_t, bus_dmamap_t,
|
|
struct mbuf *, bus_dmamap_callback2_t *, void *, int);
|
|
int bus_dmamap_load_uio (bus_dma_tag_t, bus_dmamap_t,
|
|
struct uio *, bus_dmamap_callback2_t *, void *, int);
|
|
void bus_dmamap_unload (bus_dma_tag_t, bus_dmamap_t);
|
|
void bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
|
|
|
|
int bus_dmamem_alloc (bus_dma_tag_t tag, void **vaddr, int flag,
|
|
bus_dmamap_t *mapp);
|
|
void bus_dmamem_free (bus_dma_tag_t tag, void *vaddr, bus_dmamap_t map);
|
|
|
|
/*
|
|
* Generic helper function for manipulating mutexes.
|
|
*/
|
|
void busdma_lock_mutex(void *arg, bus_dma_lock_op_t op);
|
|
|
|
#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
|
|
#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
|
|
#define BUS_SPACE_MAXADDR 0xFFFFFFFF
|
|
#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
|
|
#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
|
|
#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
|
|
|
|
/* XXX: is this right ? */
|
|
#define bus_space_read_stream_1(t, h, o) bus_space_read_1((t), (h), (o))
|
|
#define bus_space_read_stream_2(t, h, o) bus_space_read_2((t), (h), (o))
|
|
#define bus_space_read_stream_4(t, h, o) bus_space_read_4((t), (h), (o))
|
|
|
|
#define bus_space_read_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_read_multi_1((t), (h), (o), (a), (c))
|
|
#define bus_space_read_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_read_multi_2((t), (h), (o), (a), (c))
|
|
#define bus_space_read_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_read_multi_4((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_write_stream_1(t, h, o, v) \
|
|
bus_space_write_1((t), (h), (o), (v))
|
|
#define bus_space_write_stream_2(t, h, o, v) \
|
|
bus_space_write_2((t), (h), (o), (v))
|
|
#define bus_space_write_stream_4(t, h, o, v) \
|
|
bus_space_write_4((t), (h), (o), (v))
|
|
|
|
#define bus_space_write_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_write_multi_1((t), (h), (o), (a), (c))
|
|
#define bus_space_write_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_write_multi_2((t), (h), (o), (a), (c))
|
|
#define bus_space_write_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_write_multi_4((t), (h), (o), (a), (c))
|
|
|
|
|
|
#endif /* _MACHINE_BUS_H_ */
|