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attimer_isa.c revision 1.8 
      1  1.8  dyoung /*	$NetBSD: attimer_isa.c,v 1.8 2007/12/31 09:12:18 dyoung Exp $	*/
      2  1.1    cube 
      3  1.1    cube /*
      4  1.1    cube  *  Copyright (c) 2005 The NetBSD Foundation.
      5  1.1    cube  *  All rights reserved.
      6  1.1    cube  *
      7  1.1    cube  *  Redistribution and use in source and binary forms, with or without
      8  1.1    cube  *  modification, are permitted provided that the following conditions
      9  1.1    cube  *  are met:
     10  1.1    cube  *  1. Redistributions of source code must retain the above copyright
     11  1.1    cube  *     notice, this list of conditions and the following disclaimer.
     12  1.1    cube  *  2. Redistributions in binary form must reproduce the above copyright
     13  1.1    cube  *     notice, this list of conditions and the following disclaimer in the
     14  1.1    cube  *     documentation and/or other materials provided with the distribution.
     15  1.6    cube  *  3. Neither the name of The NetBSD Foundation nor the names of its
     16  1.1    cube  *     contributors may be used to endorse or promote products derived
     17  1.1    cube  *     from this software without specific prior written permission.
     18  1.1    cube  *
     19  1.1    cube  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1    cube  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1    cube  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1    cube  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1    cube  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1    cube  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1    cube  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1    cube  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1    cube  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1    cube  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1    cube  *  POSSIBILITY OF SUCH DAMAGE.
     30  1.1    cube  */
     31  1.1    cube 
     32  1.1    cube /*
     33  1.1    cube  * Copyright (c) 1996 Carnegie-Mellon University.
     34  1.1    cube  * All rights reserved.
     35  1.1    cube  *
     36  1.1    cube  * Author: Chris G. Demetriou
     37  1.1    cube  *
     38  1.1    cube  * Permission to use, copy, modify and distribute this software and
     39  1.1    cube  * its documentation is hereby granted, provided that both the copyright
     40  1.1    cube  * notice and this permission notice appear in all copies of the
     41  1.1    cube  * software, derivative works or modified versions, and any portions
     42  1.1    cube  * thereof, and that both notices appear in supporting documentation.
     43  1.1    cube  *
     44  1.1    cube  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     45  1.1    cube  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     46  1.1    cube  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     47  1.1    cube  *
     48  1.1    cube  * Carnegie Mellon requests users of this software to return to
     49  1.1    cube  *
     50  1.1    cube  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     51  1.1    cube  *  School of Computer Science
     52  1.1    cube  *  Carnegie Mellon University
     53  1.1    cube  *  Pittsburgh PA 15213-3890
     54  1.1    cube  *
     55  1.1    cube  * any improvements or extensions that they make and grant Carnegie the
     56  1.1    cube  * rights to redistribute these changes.
     57  1.1    cube  */
     58  1.1    cube 
     59  1.1    cube /*
     60  1.1    cube  * ISA attachment for attimer(4)
     61  1.1    cube  */
     62  1.1    cube 
     63  1.1    cube #include <sys/cdefs.h>
     64  1.8  dyoung __KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.8 2007/12/31 09:12:18 dyoung Exp $");
     65  1.1    cube 
     66  1.1    cube #include <sys/param.h>
     67  1.1    cube #include <sys/systm.h>
     68  1.1    cube #include <sys/errno.h>
     69  1.1    cube #include <sys/ioctl.h>
     70  1.1    cube #include <sys/device.h>
     71  1.1    cube #include <sys/proc.h>
     72  1.1    cube 
     73  1.7      ad #include <sys/bus.h>
     74  1.1    cube 
     75  1.1    cube #include <dev/ic/attimervar.h>
     76  1.1    cube 
     77  1.1    cube #include <dev/isa/isareg.h>
     78  1.1    cube #include <dev/isa/isavar.h>
     79  1.1    cube 
     80  1.8  dyoung static int	attimer_isa_match(device_t, struct cfdata *, void *);
     81  1.8  dyoung static void	attimer_isa_attach(device_t, device_t, void *);
     82  1.1    cube 
     83  1.1    cube CFATTACH_DECL(attimer_isa, sizeof(struct attimer_softc),
     84  1.1    cube     attimer_isa_match, attimer_isa_attach, NULL, NULL);
     85  1.1    cube 
     86  1.1    cube static int
     87  1.8  dyoung attimer_isa_match(device_t parent, struct cfdata *match, void *aux)
     88  1.1    cube {
     89  1.1    cube 	struct isa_attach_args *ia = aux;
     90  1.1    cube 	bus_space_handle_t att_ioh;
     91  1.1    cube 
     92  1.1    cube 	if (ISA_DIRECT_CONFIG(ia))
     93  1.1    cube 		return (0);
     94  1.1    cube 
     95  1.1    cube 	/* If values are hardwired to something that they can't be, punt. */
     96  1.1    cube 	if (ia->ia_nio < 1 ||
     97  1.1    cube 	    (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT &&
     98  1.1    cube 	    ia->ia_io[0].ir_addr != IO_TIMER1))
     99  1.1    cube 		return (0);
    100  1.1    cube 
    101  1.1    cube 	if (ia->ia_niomem > 0 &&
    102  1.1    cube 	    (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM))
    103  1.1    cube 		return (0);
    104  1.1    cube 
    105  1.1    cube 	if (ia->ia_nirq > 0 &&
    106  1.1    cube 	    (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ))
    107  1.1    cube 		return (0);
    108  1.1    cube 
    109  1.1    cube 	if (ia->ia_ndrq > 0 &&
    110  1.1    cube 	    (ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ))
    111  1.1    cube 		return (0);
    112  1.1    cube 
    113  1.1    cube 	if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh))
    114  1.1    cube 		return 0;
    115  1.1    cube 	bus_space_unmap(ia->ia_iot, att_ioh, 4);
    116  1.1    cube 
    117  1.1    cube 	ia->ia_io[0].ir_addr = IO_TIMER1;
    118  1.1    cube 	ia->ia_io[0].ir_size = 4;
    119  1.1    cube 	ia->ia_nio = 1;
    120  1.1    cube 
    121  1.1    cube 	ia->ia_niomem = 0;
    122  1.1    cube 	ia->ia_nirq = 0;
    123  1.1    cube 	ia->ia_ndrq = 0;
    124  1.1    cube 
    125  1.1    cube 	return 1;
    126  1.1    cube }
    127  1.1    cube 
    128  1.1    cube static void
    129  1.8  dyoung attimer_isa_attach(device_t parent, device_t self, void *aux)
    130  1.1    cube {
    131  1.8  dyoung 	struct attimer_softc *sc = device_private(self);
    132  1.1    cube 	struct isa_attach_args *ia = aux;
    133  1.1    cube 
    134  1.1    cube 	sc->sc_iot = ia->ia_iot;
    135  1.1    cube 
    136  1.5     uwe 	aprint_naive(": AT Timer\n");
    137  1.1    cube 	aprint_normal(": AT Timer\n");
    138  1.1    cube 
    139  1.1    cube 	if (bus_space_map(sc->sc_iot, IO_TIMER1, 4, 0, &sc->sc_ioh) != 0)
    140  1.8  dyoung 		aprint_error_dev(&sc->sc_dev, "could not map registers\n");
    141  1.1    cube 	else
    142  1.1    cube 		attimer_attach(sc);
    143  1.1    cube }
    144