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isa_machdep.c revision 1.2 
      1 /* $NetBSD: isa_machdep.c,v 1.2 2007/10/17 19:56:09 garbled Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2007 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Tim Rightnour
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.2 2007/10/17 19:56:09 garbled Exp $");
     41 
     42 #include <sys/param.h>
     43 
     44 #include <machine/bus.h>
     45 
     46 #include <dev/isa/isavar.h>
     47 #include <dev/isa/isareg.h>
     48 
     49 bus_space_handle_t ofppc_isa_hdl;
     50 struct powerpc_isa_chipset genppc_ict;
     51 
     52 /*
     53  * isa_inb and isa_outb are pretty much used to access the 8259's.  This isn't
     54  * ideal, but, whatever.  Because of this, this is an ultra-stripped down
     55  * version of those funcitons, just to satisfy the pic driver.
     56  */
     57 
     58 int
     59 map_isa_ioregs(void)
     60 {
     61 	return bus_space_map(&genppc_isa_io_space_tag, IO_ISABEGIN, IO_ISAEND,
     62 	    0, &ofppc_isa_hdl);
     63 }
     64 
     65 uint8_t
     66 isa_inb(uint32_t addr)
     67 {
     68 	return bus_space_read_1(&genppc_isa_io_space_tag, ofppc_isa_hdl, addr);
     69 }
     70 
     71 void
     72 isa_outb(uint32_t addr, uint8_t val)
     73 {
     74 	bus_space_write_1(&genppc_isa_io_space_tag, ofppc_isa_hdl, addr, val);
     75 }
     76