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| -rw-r--r-- | sys/arch/mac68k/include/bus.h | 525 |
1 files changed, 525 insertions, 0 deletions
diff --git a/sys/arch/mac68k/include/bus.h b/sys/arch/mac68k/include/bus.h new file mode 100644 index 00000000000..684e193fe47 --- /dev/null +++ b/sys/arch/mac68k/include/bus.h @@ -0,0 +1,525 @@ +/* $OpenBSD: bus.h,v 1.1 1997/02/26 05:38:12 gene Exp $ */ +/* $NetBSD: bus.h,v 1.6 1997/02/24 05:55:14 scottr Exp $ */ + +/* + * Copyright (C) 1997 Scott Reynolds. All rights reserved. + * Copyright (C) 1996 Jason R. Thorpe. 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Scott Reynolds and + * Jason Thorpe for the NetBSD Project. + * 4. 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. + */ +typedef int bus_space_tag_t; +typedef u_long bus_space_handle_t; + +int bus_space_map __P((bus_space_tag_t, bus_addr_t, bus_size_t, + int, bus_space_handle_t *)); +void bus_space_unmap __P((bus_space_tag_t, bus_space_handle_t, + bus_size_t)); +int bus_space_subregion __P((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 __P((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)); +void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, + bus_size_t size)); + +/* + * u_intN_t bus_space_read_N __P((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. + */ + +#define bus_space_read_1(t, h, o) \ + ((void) t, (*(volatile u_int8_t *)((h) + (o)))) + +#define bus_space_read_2(t, h, o) \ + ((void) t, (*(volatile u_int16_t *)((h) + (o)))) + +#define bus_space_read_4(t, h, o) \ + ((void) t, (*(volatile u_int32_t *)((h) + (o)))) + +#if 0 /* Cause a link error for bus_space_read_8 */ +#define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! +#endif + +/* + * void bus_space_read_multi_N __P((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. + */ + +#define bus_space_read_multi_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movb a0@,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_read_multi_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movw a0@,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_read_multi_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movl a0@,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_read_multi_8 */ +#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! +#endif + +/* + * void bus_space_read_region_N __P((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. + */ + +#define bus_space_read_region_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movb a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_read_region_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movw a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_read_region_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movl a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_read_region_8 */ +#define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!! +#endif + +/* + * void bus_space_write_N __P((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. + */ + +#define bus_space_write_1(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int8_t *)((h) + (o)) = (v)))) + +#define bus_space_write_2(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int16_t *)((h) + (o)) = (v)))) + +#define bus_space_write_4(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int32_t *)((h) + (o)) = (v)))) + +#if 0 /* Cause a link error for bus_space_write_8 */ +#define bus_space_write_8 !!! bus_space_write_8 not implemented !!! +#endif + +/* + * void bus_space_write_multi_N __P((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. + */ + +#define bus_space_write_multi_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movb a1@+,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_write_multi_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movw a1@+,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_write_multi_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movl a1@+,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_write_8 */ +#define bus_space_write_multi_8(t, h, o, a, c) \ + !!! bus_space_write_multi_8 unimplimented !!! +#endif + +/* + * void bus_space_write_region_N __P((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'. + */ + +#define bus_space_write_region_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movb a1@+,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_write_region_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movw a1@+,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_write_region_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movl a1@+,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_write_region_8 */ +#define bus_space_write_region_8 \ + !!! bus_space_write_region_8 unimplemented !!! +#endif + +/* + * void bus_space_set_multi_N __P((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. + */ + +#define bus_space_set_multi_1(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movb d1,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#define bus_space_set_multi_2(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movw d1,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#define bus_space_set_multi_4(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movl d1,a0@ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_set_multi_8 */ +#define bus_space_set_multi_8 \ + !!! bus_space_set_multi_8 unimplemented !!! +#endif + +/* + * void bus_space_set_region_N __P((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'. + */ + +#define bus_space_set_region_1(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movb d1,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#define bus_space_set_region_2(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movw d1,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#define bus_space_set_region_4(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,d1 ; \ + movl %2,d0 ; \ + 1: movl d1,a0@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "a0","d0","d1"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_set_region_8 */ +#define bus_space_set_region_8 \ + !!! bus_space_set_region_8 unimplemented !!! +#endif + +/* + * void bus_space_copy_N __P((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 bus_space_copy_1(t, h1, o1, h2, o2, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movb a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h1) + (o1)), "r" ((h2) + (o2)), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_copy_2(t, h1, o1, h2, o2, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movw a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h1) + (o1)), "r" ((h2) + (o2)), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#define bus_space_copy_4(t, h1, o1, h2, o2, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,a0 ; \ + movl %1,a1 ; \ + movl %2,d0 ; \ + 1: movl a0@+,a1@+ ; \ + subql #1,d0 ; \ + jne 1b" : \ + : \ + "r" ((h1) + (o1)), "r" ((h2) + (o2)), "g" (c) : \ + "a0","a1","d0"); \ +} while (0); + +#if 0 /* Cause a link error for bus_space_copy_8 */ +#define bus_space_copy_8 \ + !!! bus_space_copy_8 unimplemented !!! +#endif + +/* + * Bus read/write barrier methods. + * + * void bus_space_barrier __P((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_BARRIER_READ 0x01 /* force read barrier */ +#define BUS_BARRIER_WRITE 0x02 /* force write barrier */ + +/* + * Machine-dependent extensions. + */ +int bus_probe __P((bus_space_tag_t t, bus_space_handle_t bsh, + bus_size_t offset, int sz)); + +#endif /* _MAC68K_BUS_H_ */ |