174 lines
3.6 KiB
C
174 lines
3.6 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <err.h>
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#include "io.h"
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static struct io_ops *ops;
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int
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ioperm(unsigned long from, unsigned long num, int on)
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{
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int error;
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int bwx;
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size_t len = sizeof(bwx);
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if ((error = sysctlbyname("hw.chipset.bwx", &bwx, &len, 0, 0)) < 0)
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return error;
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if (bwx)
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ops = &bwx_io_ops;
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else
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ops = &swiz_io_ops;
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return ops->ioperm(from, num, on);
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}
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u_int8_t
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inb(u_int32_t port)
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{
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return ops->inb(port);
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}
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u_int16_t
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inw(u_int32_t port)
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{
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return ops->inw(port);
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}
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u_int32_t
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inl(u_int32_t port)
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{
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return ops->inl(port);
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}
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void
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outb(u_int32_t port, u_int8_t val)
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{
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ops->outb(port, val);
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}
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void
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outw(u_int32_t port, u_int16_t val)
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{
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ops->outw(port, val);
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}
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void
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outl(u_int32_t port, u_int32_t val)
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{
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ops->outl(port, val);
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}
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void *
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map_memory(u_int32_t address, u_int32_t size)
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{
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return ops->map_memory(address, size);
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}
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void
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unmap_memory(void *handle, u_int32_t size)
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{
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ops->unmap_memory(handle, size);
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}
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u_int8_t
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readb(void *handle, u_int32_t offset)
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{
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return ops->readb(handle, offset);
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}
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u_int16_t
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readw(void *handle, u_int32_t offset)
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{
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return ops->readw(handle, offset);
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}
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u_int32_t
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readl(void *handle, u_int32_t offset)
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{
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return ops->readl(handle, offset);
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}
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void
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writeb(void *handle, u_int32_t offset, u_int8_t val)
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{
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ops->writeb(handle, offset, val);
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__asm__ __volatile__ ("mb");
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}
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void
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writew(void *handle, u_int32_t offset, u_int16_t val)
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{
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ops->writew(handle, offset, val);
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__asm__ __volatile__ ("mb");
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}
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void
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writel(void *handle, u_int32_t offset, u_int32_t val)
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{
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ops->writel(handle, offset, val);
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__asm__ __volatile__ ("mb");
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}
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void
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writeb_nb(void *handle, u_int32_t offset, u_int8_t val)
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{
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return ops->writeb(handle, offset, val);
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}
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void
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writew_nb(void *handle, u_int32_t offset, u_int16_t val)
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{
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return ops->writew(handle, offset, val);
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}
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void
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writel_nb(void *handle, u_int32_t offset, u_int32_t val)
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{
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return ops->writel(handle, offset, val);
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}
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u_int64_t
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dense_base(void)
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{
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static u_int64_t base = 0;
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if (base == 0) {
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size_t len = sizeof(base);
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int error;
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if ((error = sysctlbyname("hw.chipset.dense", &base, &len,
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0, 0)) < 0)
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err(1, "hw.chipset.dense");
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}
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return base;
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}
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