/* $NetBSD: bus_funcs.h,v 1.1 2011/07/01 17:09:58 dyoung Exp $ */ /*- * Copyright (c) 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. */ /* * Copyright (c) 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #ifndef _ATARI_BUS_FUNCS_H_ #define _ATARI_BUS_FUNCS_H_ int bus_space_alloc(bus_space_tag_t, bus_addr_t, bus_addr_t, bus_size_t, bus_size_t, bus_size_t, int, bus_addr_t *, bus_space_handle_t *); int bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t, int, bus_space_handle_t *); void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t); int bus_space_subregion(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_size_t, bus_space_handle_t *); /* * Tag allocation */ bus_space_tag_t beb_alloc_bus_space_tag(bus_space_tag_t); bus_space_tag_t leb_alloc_bus_space_tag(bus_space_tag_t); /* * XXX */ bus_space_tag_t mb_alloc_bus_space_tag(void); void mb_free_bus_space_tag(bus_space_tag_t); /* * Utility macros; INTERNAL USE ONLY. */ #define __abs_c(a,b) __CONCAT(a,b) #define __abs_opname(op,size) __abs_c(__abs_c(__abs_c(abs_,op),_),size) #define __abs_p(sz, t, h, o) \ (*(t)->__abs_opname(p,sz))(t, h, o) #define __abs_rs(sz, t, h, o) \ (*(t)->__abs_opname(r,sz))(t, h, o) #define __abs_rss(sz, t, h, o) \ (*(t)->__abs_opname(rs,sz))(t, h, o) #define __abs_ws(sz, t, h, o, v) \ (*(t)->__abs_opname(w,sz))(t, h, o, v) #define __abs_wss(sz, t, h, o, v) \ (*(t)->__abs_opname(ws,sz))(t, h, o, v) #define __abs_nonsingle(type, sz, t, h, o, a, c) \ (*(t)->__abs_opname(type,sz))(t, h, o, a, c) #define __abs_set(type, sz, t, h, o, v, c) \ (*(t)->__abs_opname(type,sz))(t, h, o, v, c) /* * No swaps needed and no other trickery, so it should be possible * to shortcut these to memcpy() directly [ leo 19990107 ] */ #if 0 #define __abs_copy(sz, t, h1, o1, h2, o2, cnt) \ (*(t)->__abs_opname(c,sz))(t, h1, o1, h2, o2, cnt) #else #define __abs_copy(sz, t, h1, o1, h2, o2, cnt) do { \ memcpy((void*)(h2 + o2), (void *)(h1 + o1), sz * cnt); \ (void)t; \ } while (0) #endif /* * Check accesibility of the location for various sized bus accesses */ #define bus_space_peek_1(t, h, o) __abs_p(1,(t),(h),(o)) #define bus_space_peek_2(t, h, o) __abs_p(2,(t),(h),(o)) #define bus_space_peek_4(t, h, o) __abs_p(4,(t),(h),(o)) #define bus_space_peek_8(t, h, o) __abs_p(8,(t),(h),(o)) /* * Bus read (single) operations. */ #define bus_space_read_1(t, h, o) __abs_rs(1,(t),(h),(o)) #define bus_space_read_2(t, h, o) __abs_rs(2,(t),(h),(o)) #define bus_space_read_4(t, h, o) __abs_rs(4,(t),(h),(o)) #define bus_space_read_8(t, h, o) __abs_rs(8,(t),(h),(o)) /* * Bus read (single) stream operations. */ #define bus_space_read_stream_1(t, h, o) __abs_rss(1,(t),(h),(o)) #define bus_space_read_stream_2(t, h, o) __abs_rss(2,(t),(h),(o)) #define bus_space_read_stream_4(t, h, o) __abs_rss(4,(t),(h),(o)) #define bus_space_read_stream_8(t, h, o) __abs_rss(8,(t),(h),(o)) /* * Bus read multiple operations. */ #define bus_space_read_multi_1(t, h, o, a, c) \ __abs_nonsingle(rm,1,(t),(h),(o),(a),(c)) #define bus_space_read_multi_2(t, h, o, a, c) \ __abs_nonsingle(rm,2,(t),(h),(o),(a),(c)) #define bus_space_read_multi_4(t, h, o, a, c) \ __abs_nonsingle(rm,4,(t),(h),(o),(a),(c)) #define bus_space_read_multi_8(t, h, o, a, c) \ __abs_nonsingle(rm,8,(t),(h),(o),(a),(c)) /* * Bus read multiple stream operations. */ #define bus_space_read_multi_stream_1(t, h, o, a, c) \ __abs_nonsingle(rms,1,(t),(h),(o),(a),(c)) #define bus_space_read_multi_stream_2(t, h, o, a, c) \ __abs_nonsingle(rms,2,(t),(h),(o),(a),(c)) #define bus_space_read_multi_stream_4(t, h, o, a, c) \ __abs_nonsingle(rms,4,(t),(h),(o),(a),(c)) #define bus_space_read_multi_stream_8(t, h, o, a, c) \ __abs_nonsingle(rms,8,(t),(h),(o),(a),(c)) /* * Bus read region operations. */ #define bus_space_read_region_1(t, h, o, a, c) \ __abs_nonsingle(rr,1,(t),(h),(o),(a),(c)) #define bus_space_read_region_2(t, h, o, a, c) \ __abs_nonsingle(rr,2,(t),(h),(o),(a),(c)) #define bus_space_read_region_4(t, h, o, a, c) \ __abs_nonsingle(rr,4,(t),(h),(o),(a),(c)) #define bus_space_read_region_8(t, h, o, a, c) \ __abs_nonsingle(rr,8,(t),(h),(o),(a),(c)) /* * Bus read region stream operations. */ #define bus_space_read_region_stream_1(t, h, o, a, c) \ __abs_nonsingle(rrs,1,(t),(h),(o),(a),(c)) #define bus_space_read_region_stream_2(t, h, o, a, c) \ __abs_nonsingle(rrs,2,(t),(h),(o),(a),(c)) #define bus_space_read_region_stream_4(t, h, o, a, c) \ __abs_nonsingle(rrs,4,(t),(h),(o),(a),(c)) #define bus_space_read_region_stream_8(t, h, o, a, c) \ __abs_nonsingle(rrs,8,(t),(h),(o),(a),(c)) /* * Bus write (single) operations. */ #define bus_space_write_1(t, h, o, v) __abs_ws(1,(t),(h),(o),(v)) #define bus_space_write_2(t, h, o, v) __abs_ws(2,(t),(h),(o),(v)) #define bus_space_write_4(t, h, o, v) __abs_ws(4,(t),(h),(o),(v)) #define bus_space_write_8(t, h, o, v) __abs_ws(8,(t),(h),(o),(v)) /* * Bus write (single) stream operations. */ #define bus_space_write_stream_1(t, h, o, v) __abs_wss(1,(t),(h),(o),(v)) #define bus_space_write_stream_2(t, h, o, v) __abs_wss(2,(t),(h),(o),(v)) #define bus_space_write_stream_4(t, h, o, v) __abs_wss(4,(t),(h),(o),(v)) #define bus_space_write_stream_8(t, h, o, v) __abs_wss(8,(t),(h),(o),(v)) /* * Bus write multiple operations. */ #define bus_space_write_multi_1(t, h, o, a, c) \ __abs_nonsingle(wm,1,(t),(h),(o),(a),(c)) #define bus_space_write_multi_2(t, h, o, a, c) \ __abs_nonsingle(wm,2,(t),(h),(o),(a),(c)) #define bus_space_write_multi_4(t, h, o, a, c) \ __abs_nonsingle(wm,4,(t),(h),(o),(a),(c)) #define bus_space_write_multi_8(t, h, o, a, c) \ __abs_nonsingle(wm,8,(t),(h),(o),(a),(c)) /* * Bus write multiple stream operations. */ #define bus_space_write_multi_stream_1(t, h, o, a, c) \ __abs_nonsingle(wms,1,(t),(h),(o),(a),(c)) #define bus_space_write_multi_stream_2(t, h, o, a, c) \ __abs_nonsingle(wms,2,(t),(h),(o),(a),(c)) #define bus_space_write_multi_stream_4(t, h, o, a, c) \ __abs_nonsingle(wms,4,(t),(h),(o),(a),(c)) #define bus_space_write_multi_stream_8(t, h, o, a, c) \ __abs_nonsingle(wms,8,(t),(h),(o),(a),(c)) /* * Bus write region operations. */ #define bus_space_write_region_1(t, h, o, a, c) \ __abs_nonsingle(wr,1,(t),(h),(o),(a),(c)) #define bus_space_write_region_2(t, h, o, a, c) \ __abs_nonsingle(wr,2,(t),(h),(o),(a),(c)) #define bus_space_write_region_4(t, h, o, a, c) \ __abs_nonsingle(wr,4,(t),(h),(o),(a),(c)) #define bus_space_write_region_8(t, h, o, a, c) \ __abs_nonsingle(wr,8,(t),(h),(o),(a),(c)) /* * Bus write region stream operations. */ #define bus_space_write_region_stream_1(t, h, o, a, c) \ __abs_nonsingle(wrs,1,(t),(h),(o),(a),(c)) #define bus_space_write_region_stream_2(t, h, o, a, c) \ __abs_nonsingle(wrs,2,(t),(h),(o),(a),(c)) #define bus_space_write_region_stream_4(t, h, o, a, c) \ __abs_nonsingle(wrs,4,(t),(h),(o),(a),(c)) #define bus_space_write_region_stream_8(t, h, o, a, c) \ __abs_nonsingle(wrs,8,(t),(h),(o),(a),(c)) /* * Set multiple operations. */ #define bus_space_set_multi_1(t, h, o, v, c) \ __abs_set(sm,1,(t),(h),(o),(v),(c)) #define bus_space_set_multi_2(t, h, o, v, c) \ __abs_set(sm,2,(t),(h),(o),(v),(c)) #define bus_space_set_multi_4(t, h, o, v, c) \ __abs_set(sm,4,(t),(h),(o),(v),(c)) #define bus_space_set_multi_8(t, h, o, v, c) \ __abs_set(sm,8,(t),(h),(o),(v),(c)) /* * Set region operations. */ #define bus_space_set_region_1(t, h, o, v, c) \ __abs_set(sr,1,(t),(h),(o),(v),(c)) #define bus_space_set_region_2(t, h, o, v, c) \ __abs_set(sr,2,(t),(h),(o),(v),(c)) #define bus_space_set_region_4(t, h, o, v, c) \ __abs_set(sr,4,(t),(h),(o),(v),(c)) #define bus_space_set_region_8(t, h, o, v, c) \ __abs_set(sr,8,(t),(h),(o),(v),(c)) /* * Copy region operations. */ #define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \ __abs_copy(1, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \ __abs_copy(2, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \ __abs_copy(4, (t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \ __abs_copy(8, (t), (h1), (o1), (h2), (o2), (c)) /* * void *bus_space_vaddr(bus_space_tag_t, bus_space_handle_t); * * Get the kernel virtual address for the mapped bus space. * Only allowed for regions mapped with BUS_SPACE_MAP_LINEAR. * (XXX not enforced) */ #define bus_space_vaddr(t, h) ((void)(t), (void *)(h)) /* * paddr_t bus_space_mmap(bus_space_tag_t t, bus_addr_t base, * off_t offset, int prot, int flags); * * Mmap an area of bus space. */ paddr_t bus_space_mmap(bus_space_tag_t, bus_addr_t, off_t, int, int); #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) /* * Bus read/write barrier methods. * * void bus_space_barrier(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * bus_size_t len, int flags); * * Note: the Atari does not currently require barriers, but we must * provide the flags to MI code. */ #define bus_space_barrier(t, h, o, l, f) \ ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f))) /* Forwards needed by prototypes below. */ struct mbuf; struct uio; #define bus_dmamap_create(t, s, n, m, b, f, p) \ (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p)) #define bus_dmamap_destroy(t, p) \ (*(t)->_dmamap_destroy)((t), (p)) #define bus_dmamap_load(t, m, b, s, p, f) \ (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f)) #define bus_dmamap_load_mbuf(t, m, b, f) \ (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f)) #define bus_dmamap_load_uio(t, m, u, f) \ (*(t)->_dmamap_load_uio)((t), (m), (u), (f)) #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) #define bus_dmamap_unload(t, p) \ (*(t)->_dmamap_unload)((t), (p)) #define bus_dmamap_sync(t, p, o, l, ops) \ (void)((t)->_dmamap_sync ? \ (*(t)->_dmamap_sync)((t), (p), (o), (l), (ops)) : (void)0) #define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP #define bus_dmatag_destroy(t) #ifdef _ATARI_BUS_DMA_PRIVATE int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t, int, bus_dmamap_t *); void _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, struct proc *, int); int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int); int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int); int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int); void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int); #endif /* _ATARI_BUS_DMA_PRIVATE */ int bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags); int bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size, bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags, paddr_t low, paddr_t high); void bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs); int bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs, size_t size, void **kvap, int flags); void bus_dmamem_unmap(bus_dma_tag_t tag, void *kva, size_t size); paddr_t bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs, off_t off, int prot, int flags); #endif /* _ATARI_BUS_FUNCS_H_ */