/* $NetBSD: bus_defs.h,v 1.6.34.1 2020/03/08 10:28:16 martin Exp $ */ /* * Copyright (c) 1996 Leo Weppelman. All rights reserved. * * 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 AUTHOR ``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 AUTHOR 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 _AMIGAPPC_BUS_DEFS_H_ #define _AMIGAPPC_BUS_DEFS_H_ /* * Memory addresses (in bus space) */ typedef uint32_t bus_addr_t; typedef uint32_t bus_size_t; /* * Access methods for bus resources and address space. */ typedef struct bus_space_tag *bus_space_tag_t; typedef u_long bus_space_handle_t; struct amigappc_bus_dma_segment; struct amigappc_bus_dma_tag; struct amigappc_bus_dmamap; typedef struct amigappc_bus_dma_segment bus_dma_segment_t; typedef struct amigappc_bus_dma_tag bus_dma_tag_t; typedef struct amigappc_bus_dmamap bus_dmamap_t; struct amigappc_bus_dma_tag { int dummy; }; struct amigappc_bus_dma_segment { bus_addr_t ds_addr; bus_size_t ds_len; }; struct amigappc_bus_dmamap { bus_size_t dm_maxsegsz; bus_size_t dm_mapsize; int dm_nsegs; bus_dma_segment_t *dm_segs; /* TBD */ }; /* unpublic, but needed by method implementors */ /* * Lazyness macros for function declarations. */ #define bsr(what, typ) \ typ (what)(bus_space_handle_t, bus_addr_t) #define bsw(what, typ) \ void (what)(bus_space_handle_t, bus_addr_t, unsigned) #define bsrm(what, typ) \ void (what)(bus_space_handle_t, bus_size_t, typ *, bus_size_t) #define bswm(what, typ) \ void (what)(bus_space_handle_t, bus_size_t, const typ *, bus_size_t) #define bssr(what, typ) \ void (what)(bus_space_handle_t, bus_size_t, unsigned, bus_size_t) #define bscr(what, typ) \ void (what)(bus_space_handle_t, bus_size_t, \ bus_space_handle_t, bus_size_t, bus_size_t) /* * Implementation specific structures. * XXX Don't use outside of bus_space definitions! * XXX maybe this should be encapsuled in a non-global .h file? */ struct bus_space_tag { bus_addr_t base; const struct amiga_bus_space_methods *absm; }; struct amiga_bus_space_methods { /* map, unmap, etc */ int (*bsm)(bus_space_tag_t, bus_addr_t, bus_size_t, int, bus_space_handle_t *); int (*bsms)(bus_space_handle_t, bus_size_t, bus_size_t, bus_space_handle_t *); void (*bsu)(bus_space_handle_t, bus_size_t); /* placeholders for currently not implemented alloc and free */ void *bsa; void *bsf; /* 8 bit methods */ bsr(*bsr1, uint8_t); bsw(*bsw1, uint8_t); bsrm(*bsrm1, uint8_t); bswm(*bswm1, uint8_t); bsrm(*bsrr1, uint8_t); bswm(*bswr1, uint8_t); bssr(*bssr1, uint8_t); bscr(*bscr1, uint8_t); /* 16bit methods */ bsr(*bsr2, uint16_t); bsw(*bsw2, uint16_t); bsr(*bsrs2, uint16_t); bsw(*bsws2, uint16_t); bsrm(*bsrm2, uint16_t); bswm(*bswm2, uint16_t); bsrm(*bsrms2, uint16_t); bswm(*bswms2, uint16_t); bsrm(*bsrr2, uint16_t); bswm(*bswr2, uint16_t); bsrm(*bsrrs2, uint16_t); bswm(*bswrs2, uint16_t); bssr(*bssr2, uint16_t); bscr(*bscr2, uint16_t); /* 32bit methods */ bsr(*bsr4, uint32_t); bsw(*bsw4, uint32_t); bsr(*bsrs4, uint32_t); bsw(*bsws4, uint32_t); bsrm(*bsrm4, uint32_t); bswm(*bswm4, uint32_t); bsrm(*bsrms4, uint32_t); bswm(*bswms4, uint32_t); bsrm(*bsrr4, uint32_t); bswm(*bswr4, uint32_t); bsrm(*bsrrs4, uint32_t); bswm(*bswrs4, uint32_t); bssr(*bssr4, uint32_t); bscr(*bscr4, uint32_t); }; #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) #define __BUS_SPACE_HAS_STREAM_METHODS extern const struct amiga_bus_space_methods amiga_bus_stride_1; extern const struct amiga_bus_space_methods amiga_bus_stride_1swap; extern const struct amiga_bus_space_methods amiga_bus_stride_1swap_abs; extern const struct amiga_bus_space_methods amiga_bus_stride_2; extern const struct amiga_bus_space_methods amiga_bus_stride_4; extern const struct amiga_bus_space_methods amiga_bus_stride_4swap; extern const struct amiga_bus_space_methods amiga_bus_stride_16; extern const struct amiga_bus_space_methods amiga_bus_stride_0x1000; extern const struct amiga_bus_space_methods amiga_bus_stride_0x4000; #endif /* _AMIGAPPC_BUS_DEFS_H_ */