/* $OpenBSD: bus.h,v 1.11 2006/01/22 18:37:58 miod Exp $ */ /* $NetBSD: bus.h,v 1.9 1998/01/13 18:32:15 scottr Exp $ */ /*- * Copyright (c) 1996, 1997, 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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) 1997 Scott Reynolds. 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * 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 _MAC68K_BUS_H_ #define _MAC68K_BUS_H_ /* * Value for the mac68k bus space tag, not to be used directly by MI code. */ #define MAC68K_BUS_SPACE_MEM 0 /* space is mem space */ /* * Bus address and size types */ typedef u_long bus_addr_t; typedef u_long bus_size_t; /* * Access methods for bus resources and address space. */ #define BSH_T struct bus_space_handle_s typedef int bus_space_tag_t; typedef struct bus_space_handle_s { u_long base; int swapped; u_int8_t (*bsr1)(bus_space_tag_t, BSH_T *, bus_size_t); u_int16_t (*bsr2)(bus_space_tag_t, BSH_T *, bus_size_t); u_int32_t (*bsr4)(bus_space_tag_t, BSH_T *, bus_size_t); u_int8_t (*bsrs1)(bus_space_tag_t, BSH_T *, bus_size_t); u_int16_t (*bsrs2)(bus_space_tag_t, BSH_T *, bus_size_t); u_int32_t (*bsrs4)(bus_space_tag_t, BSH_T *, bus_size_t); void (*bsrm1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t *, size_t); void (*bsrm2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t *, size_t); void (*bsrm4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t *, size_t); void (*bsrms2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t *, size_t); void (*bsrms4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t *, size_t); void (*bsrr1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t *, size_t); void (*bsrr2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t *, size_t); void (*bsrr4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t *, size_t); void (*bsrrs1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t *, size_t); void (*bsrrs2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t *, size_t); void (*bsrrs4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t *, size_t); void (*bsw1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t); void (*bsw2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t); void (*bsw4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t); void (*bsws1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t); void (*bsws2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t); void (*bsws4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t); void (*bswm1)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int8_t *, size_t); void (*bswm2)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int16_t *, size_t); void (*bswm4)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int32_t *, size_t); void (*bswms1)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int8_t *, size_t); void (*bswms2)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int16_t *, size_t); void (*bswms4)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int32_t *, size_t); void (*bswr1)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int8_t *, size_t); void (*bswr2)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int16_t *, size_t); void (*bswr4)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int32_t *, size_t); void (*bswrs1)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int8_t *, size_t); void (*bswrs2)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int16_t *, size_t); void (*bswrs4)(bus_space_tag_t, BSH_T *, bus_size_t, const u_int32_t *, size_t); void (*bssm1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t v, size_t); void (*bssm2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t v, size_t); void (*bssm4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t v, size_t); void (*bssr1)(bus_space_tag_t, BSH_T *, bus_size_t, u_int8_t v, size_t); void (*bssr2)(bus_space_tag_t, BSH_T *, bus_size_t, u_int16_t v, size_t); void (*bssr4)(bus_space_tag_t, BSH_T *, bus_size_t, u_int32_t v, size_t); } bus_space_handle_t; #undef BSH_T void mac68k_bus_space_handle_swapped(bus_space_tag_t, bus_space_handle_t *h); /* * int bus_space_map(bus_space_tag_t t, bus_addr_t addr, * bus_size_t size, int flags, bus_space_handle_t *bshp); * * Map a region of bus space. */ #define BUS_SPACE_MAP_CACHEABLE 0x01 #define BUS_SPACE_MAP_LINEAR 0x02 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 t, * bus_space_handle_t bsh, bus_size_t size); * * Unmap a region of bus space. */ void bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t); /* * int bus_space_subregion(bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, * bus_space_handle_t *nbshp); * * Get a new handle for a subregion of an already-mapped area of bus space. */ int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp); /* * int bus_space_alloc(bus_space_tag_t t, bus_addr_t, rstart, * bus_addr_t rend, bus_size_t size, bus_size_t align, * bus_size_t boundary, int flags, bus_addr_t *addrp, * bus_space_handle_t *bshp); * * Allocate a region of bus space. */ int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart, bus_addr_t rend, bus_size_t size, bus_size_t align, bus_size_t boundary, int cacheable, bus_addr_t *addrp, bus_space_handle_t *bshp); /* * int bus_space_free(bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t size); * * Free a region of bus space. */ void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size); /* * int mac68k_bus_space_probe(bus_space_tag_t t, * bus_space_handle_t bsh, bus_size_t offset, int sz); * * Probe the bus at t/bsh/offset, using sz as the size of the load. * * This is a machine-dependent extension, and is not to be used by * machine-independent code. */ int mac68k_bus_space_probe(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t offset, int sz); /* * u_intN_t bus_space_read_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset); * * Read a 1, 2, 4, or 8 byte quantity from bus space * described by tag/handle/offset. */ u_int8_t mac68k_bsr1(bus_space_tag_t tag, bus_space_handle_t *bsh, bus_size_t offset); u_int16_t mac68k_bsr2(bus_space_tag_t tag, bus_space_handle_t *bsh, bus_size_t offset); u_int16_t mac68k_bsr2_swap(bus_space_tag_t tag, bus_space_handle_t *bsh, bus_size_t offset); u_int32_t mac68k_bsr4(bus_space_tag_t tag, bus_space_handle_t *bsh, bus_size_t offset); u_int32_t mac68k_bsr4_swap(bus_space_tag_t tag, bus_space_handle_t *bsh, bus_size_t offset); #define bus_space_read_1(t,h,o) (h).bsr1((t), &(h), (o)) #define bus_space_read_2(t,h,o) (h).bsr2((t), &(h), (o)) #define bus_space_read_4(t,h,o) (h).bsr4((t), &(h), (o)) #define bus_space_read_stream_1(t,h,o) (h).bsrs1((t), &(h), (o)) #define bus_space_read_stream_2(t,h,o) (h).bsrs2((t), &(h), (o)) #define bus_space_read_stream_4(t,h,o) (h).bsrs4((t), &(h), (o)) /* * void bus_space_read_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t *addr, size_t count); * * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle/offset and copy into buffer provided. */ void mac68k_bsrm1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int8_t *, size_t); void mac68k_bsrm2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t *, size_t); void mac68k_bsrm2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t *, size_t); void mac68k_bsrm4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t *, size_t); void mac68k_bsrms4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t *, size_t); void mac68k_bsrm4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t *, size_t); #define bus_space_read_multi_1(t, h, o, a, c) (h).bsrm1(t, &(h), o, a, c) #define bus_space_read_multi_2(t, h, o, a, c) (h).bsrm2(t, &(h), o, a, c) #define bus_space_read_multi_4(t, h, o, a, c) (h).bsrm4(t, &(h), o, a, c) /* * void bus_space_read_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t *addr, size_t count); * * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle and starting at `offset' and copy into * buffer provided. */ void mac68k_bsrr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int8_t *, size_t); void mac68k_bsrr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t *, size_t); void mac68k_bsrr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t *, size_t); void mac68k_bsrr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t *, size_t); void mac68k_bsrr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t *, size_t); #define bus_space_read_region_1(t, h, o, a, c) (h).bsrr1(t,&(h),o,a,c) #define bus_space_read_region_2(t, h, o, a, c) (h).bsrr2(t,&(h),o,a,c) #define bus_space_read_region_4(t, h, o, a, c) (h).bsrr4(t,&(h),o,a,c) /* * void bus_space_write_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * u_intN_t value); * * Write the 1, 2, 4, or 8 byte value `value' to bus space * described by tag/handle/offset. */ void mac68k_bsw1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int8_t); void mac68k_bsw2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t); void mac68k_bsw2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int16_t); void mac68k_bsw4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t); void mac68k_bsw4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, u_int32_t); #define bus_space_write_1(t, h, o, v) (h).bsw1(t, &(h), o, v) #define bus_space_write_2(t, h, o, v) (h).bsw2(t, &(h), o, v) #define bus_space_write_4(t, h, o, v) (h).bsw4(t, &(h), o, v) #define bus_space_write_stream_1(t, h, o, v) (h).bsws1(t, &(h), o, v) #define bus_space_write_stream_2(t, h, o, v) (h).bsws2(t, &(h), o, v) #define bus_space_write_stream_4(t, h, o, v) (h).bsws4(t, &(h), o, v) /* * void bus_space_write_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const u_intN_t *addr, size_t count); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer * provided to bus space described by tag/handle/offset. */ void mac68k_bswm1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int8_t *, size_t); void mac68k_bswm2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int16_t *, size_t); void mac68k_bswm2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int16_t *, size_t); void mac68k_bswm4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int32_t *, size_t); void mac68k_bswm4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int32_t *, size_t); #define bus_space_write_multi_1(t, h, o, a, c) (h).bswm1(t, &(h), o, a, c) #define bus_space_write_multi_2(t, h, o, a, c) (h).bswm2(t, &(h), o, a, c) #define bus_space_write_multi_4(t, h, o, a, c) (h).bswm4(t, &(h), o, a, c) /* * void bus_space_write_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const u_intN_t *addr, size_t count); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided * to bus space described by tag/handle starting at `offset'. */ void mac68k_bswr1(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int8_t *, size_t); void mac68k_bswr2(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int16_t *, size_t); void mac68k_bswr2_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int16_t *, size_t); void mac68k_bswr4(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int32_t *, size_t); void mac68k_bswr4_swap(bus_space_tag_t, bus_space_handle_t *, bus_size_t, const u_int32_t *, size_t); #define bus_space_write_region_1(t, h, o, a, c) (h).bswr1(t, &(h), o, a, c) #define bus_space_write_region_2(t, h, o, a, c) (h).bswr2(t, &(h), o, a, c) #define bus_space_write_region_4(t, h, o, a, c) (h).bswr4(t, &(h), o, a, c) /* * void bus_space_set_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, * size_t count); * * Write the 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle/offset `count' times. */ void mac68k_bssm1(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int8_t v, size_t c); void mac68k_bssm2(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int16_t v, size_t c); void mac68k_bssm2_swap(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int16_t v, size_t c); void mac68k_bssm4(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int32_t v, size_t c); void mac68k_bssm4_swap(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int32_t v, size_t c); #define bus_space_set_multi_1(t, h, o, val, c) (h).bssm1(t, &(h), o, val, c) #define bus_space_set_multi_2(t, h, o, val, c) (h).bssm2(t, &(h), o, val, c) #define bus_space_set_multi_4(t, h, o, val, c) (h).bssm4(t, &(h), o, val, c) /* * void bus_space_set_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, * size_t count); * * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle starting at `offset'. */ void mac68k_bssr1(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int8_t v, size_t c); void mac68k_bssr2(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int16_t v, size_t c); void mac68k_bssr2_swap(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int16_t v, size_t c); void mac68k_bssr4(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int32_t v, size_t c); void mac68k_bssr4_swap(bus_space_tag_t t, bus_space_handle_t *h, bus_size_t o, u_int32_t v, size_t c); #define bus_space_set_region_1(t, h, o, val, c) (h).bssr1(t, &(h), o, val, c) #define bus_space_set_region_2(t, h, o, val, c) (h).bssr2(t, &(h), o, val, c) #define bus_space_set_region_4(t, h, o, val, c) (h).bssr4(t, &(h), o, val, c) /* * void bus_space_copy_N(bus_space_tag_t tag, * bus_space_handle_t bsh1, bus_size_t off1, * bus_space_handle_t bsh2, bus_size_t off2, * size_t count); * * Copy `count' 1, 2, 4, or 8 byte values from bus space starting * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. */ #define __MAC68K_copy_region_N(BYTES) \ static __inline void __CONCAT(bus_space_copy_region_,BYTES) \ (bus_space_tag_t, \ bus_space_handle_t bsh1, bus_size_t off1, \ bus_space_handle_t bsh2, bus_size_t off2, \ bus_size_t count); \ \ static __inline void \ __CONCAT(bus_space_copy_region_,BYTES)(t, h1, o1, h2, o2, c) \ bus_space_tag_t t; \ bus_space_handle_t h1, h2; \ bus_size_t o1, o2, c; \ { \ bus_size_t o; \ \ if ((h1.base + o1) >= (h2.base + o2)) { \ /* src after dest: copy forward */ \ for (o = 0; c != 0; c--, o += BYTES) \ __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ } else { \ /* dest after src: copy backwards */ \ for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \ __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ } \ } __MAC68K_copy_region_N(1) __MAC68K_copy_region_N(2) __MAC68K_copy_region_N(4) #undef __MAC68K_copy_region_N /* * 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 680x0 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))) #define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ #define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ #define bus_space_vaddr(t, h) (void *)((h).base) #endif /* _MAC68K_BUS_H_ */