107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/* $NetBSD: isa_machdep.c,v 1.6 2011/07/01 20:51:14 dyoung Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Tim Rightnour
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.6 2011/07/01 20:51:14 dyoung Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <machine/pio.h>
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#include <sys/extent.h>
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#include <dev/isa/isavar.h>
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#include <dev/isa/isareg.h>
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#define IO_ELCR1 0x4d0
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#define IO_ELCR2 0x4d1
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struct powerpc_isa_chipset genppc_ict;
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bus_space_handle_t io_icu1h, io_icu2h, io_elcrh;
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/*
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* These functions can *ONLY* be used to talk to the i8259. Leave them
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* alone. I know they are greusome.
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*/
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int
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map_isa_ioregs(void)
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{
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int err, noerr;
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err = bus_space_map(&genppc_isa_io_space_tag, IO_ICU1, 2, 0,
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&io_icu1h);
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if (err != 0)
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panic("Can't map IO_ICU1 error %d\n", err);
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err = bus_space_map(&genppc_isa_io_space_tag, IO_ICU2, 2, 0,
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&io_icu2h);
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if (err != 0)
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panic("Can't map IO_ICU2 error %d\n", err);
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noerr = bus_space_map(&genppc_isa_io_space_tag, IO_ELCR1, 2, 0,
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&io_elcrh);
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if (noerr != 0)
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aprint_error("Can't map IO_ELCR error %d\n", noerr);
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return err;
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}
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uint8_t
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isa_inb(uint32_t addr)
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{
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if (addr == IO_ICU1 || addr == IO_ICU1+1)
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return bus_space_read_1(&genppc_isa_io_space_tag, io_icu1h,
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addr-IO_ICU1);
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if (addr == IO_ICU2 || addr == IO_ICU2+1)
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return bus_space_read_1(&genppc_isa_io_space_tag, io_icu2h,
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addr-IO_ICU2);
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if (addr == IO_ELCR1 || addr == IO_ELCR2)
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return bus_space_read_1(&genppc_isa_io_space_tag, io_elcrh,
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addr-IO_ELCR1);
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return 0;
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}
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void
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isa_outb(uint32_t addr, uint8_t val)
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{
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if (addr == IO_ICU1 || addr == IO_ICU1+1)
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bus_space_write_1(&genppc_isa_io_space_tag, io_icu1h,
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addr-IO_ICU1, val);
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if (addr == IO_ICU2 || addr == IO_ICU2+1)
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bus_space_write_1(&genppc_isa_io_space_tag, io_icu2h,
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addr-IO_ICU2, val);
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if (addr == IO_ELCR1 || addr == IO_ELCR2)
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bus_space_write_1(&genppc_isa_io_space_tag, io_elcrh,
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addr-IO_ELCR1, val);
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}
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