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attimer_isa.c revision 1.10.4.2 
      1  1.10.4.2    yamt /*	$NetBSD: attimer_isa.c,v 1.10.4.2 2009/05/16 10:41:25 yamt 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       1.1    cube  *
     16       1.1    cube  *  THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17       1.1    cube  *  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18       1.1    cube  *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19       1.1    cube  *  PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20       1.1    cube  *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21       1.1    cube  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22       1.1    cube  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23       1.1    cube  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24       1.1    cube  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25       1.1    cube  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26       1.1    cube  *  POSSIBILITY OF SUCH DAMAGE.
     27       1.1    cube  */
     28       1.1    cube 
     29       1.1    cube /*
     30       1.1    cube  * Copyright (c) 1996 Carnegie-Mellon University.
     31       1.1    cube  * All rights reserved.
     32       1.1    cube  *
     33       1.1    cube  * Author: Chris G. Demetriou
     34       1.1    cube  *
     35       1.1    cube  * Permission to use, copy, modify and distribute this software and
     36       1.1    cube  * its documentation is hereby granted, provided that both the copyright
     37       1.1    cube  * notice and this permission notice appear in all copies of the
     38       1.1    cube  * software, derivative works or modified versions, and any portions
     39       1.1    cube  * thereof, and that both notices appear in supporting documentation.
     40       1.1    cube  *
     41       1.1    cube  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     42       1.1    cube  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     43       1.1    cube  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     44       1.1    cube  *
     45       1.1    cube  * Carnegie Mellon requests users of this software to return to
     46       1.1    cube  *
     47       1.1    cube  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     48       1.1    cube  *  School of Computer Science
     49       1.1    cube  *  Carnegie Mellon University
     50       1.1    cube  *  Pittsburgh PA 15213-3890
     51       1.1    cube  *
     52       1.1    cube  * any improvements or extensions that they make and grant Carnegie the
     53       1.1    cube  * rights to redistribute these changes.
     54       1.1    cube  */
     55       1.1    cube 
     56       1.1    cube /*
     57       1.1    cube  * ISA attachment for attimer(4)
     58       1.1    cube  */
     59       1.1    cube 
     60       1.1    cube #include <sys/cdefs.h>
     61  1.10.4.2    yamt __KERNEL_RCSID(0, "$NetBSD: attimer_isa.c,v 1.10.4.2 2009/05/16 10:41:25 yamt Exp $");
     62       1.1    cube 
     63       1.1    cube #include <sys/param.h>
     64       1.1    cube #include <sys/systm.h>
     65       1.1    cube #include <sys/errno.h>
     66       1.1    cube #include <sys/ioctl.h>
     67       1.1    cube #include <sys/device.h>
     68       1.1    cube #include <sys/proc.h>
     69       1.1    cube 
     70       1.7      ad #include <sys/bus.h>
     71       1.1    cube 
     72       1.1    cube #include <dev/ic/attimervar.h>
     73       1.1    cube 
     74       1.1    cube #include <dev/isa/isareg.h>
     75       1.1    cube #include <dev/isa/isavar.h>
     76       1.1    cube 
     77  1.10.4.2    yamt static int	attimer_isa_match(device_t, cfdata_t, void *);
     78       1.8  dyoung static void	attimer_isa_attach(device_t, device_t, void *);
     79       1.1    cube 
     80      1.10    cube CFATTACH_DECL_NEW(attimer_isa, sizeof(struct attimer_softc),
     81       1.9  dyoung     attimer_isa_match, attimer_isa_attach, attimer_detach, NULL);
     82       1.1    cube 
     83       1.1    cube static int
     84      1.10    cube attimer_isa_match(device_t parent, cfdata_t match, void *aux)
     85       1.1    cube {
     86       1.1    cube 	struct isa_attach_args *ia = aux;
     87       1.1    cube 	bus_space_handle_t att_ioh;
     88       1.1    cube 
     89       1.1    cube 	if (ISA_DIRECT_CONFIG(ia))
     90       1.1    cube 		return (0);
     91       1.1    cube 
     92       1.1    cube 	/* If values are hardwired to something that they can't be, punt. */
     93       1.1    cube 	if (ia->ia_nio < 1 ||
     94       1.1    cube 	    (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT &&
     95       1.1    cube 	    ia->ia_io[0].ir_addr != IO_TIMER1))
     96       1.1    cube 		return (0);
     97       1.1    cube 
     98       1.1    cube 	if (ia->ia_niomem > 0 &&
     99       1.1    cube 	    (ia->ia_iomem[0].ir_addr != ISA_UNKNOWN_IOMEM))
    100       1.1    cube 		return (0);
    101       1.1    cube 
    102       1.1    cube 	if (ia->ia_nirq > 0 &&
    103       1.1    cube 	    (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ))
    104       1.1    cube 		return (0);
    105       1.1    cube 
    106       1.1    cube 	if (ia->ia_ndrq > 0 &&
    107       1.1    cube 	    (ia->ia_drq[0].ir_drq != ISA_UNKNOWN_DRQ))
    108       1.1    cube 		return (0);
    109       1.1    cube 
    110       1.1    cube 	if (bus_space_map(ia->ia_iot, IO_TIMER1, 4, 0, &att_ioh))
    111       1.1    cube 		return 0;
    112       1.1    cube 	bus_space_unmap(ia->ia_iot, att_ioh, 4);
    113       1.1    cube 
    114       1.1    cube 	ia->ia_io[0].ir_addr = IO_TIMER1;
    115       1.1    cube 	ia->ia_io[0].ir_size = 4;
    116       1.1    cube 	ia->ia_nio = 1;
    117       1.1    cube 
    118       1.1    cube 	ia->ia_niomem = 0;
    119       1.1    cube 	ia->ia_nirq = 0;
    120       1.1    cube 	ia->ia_ndrq = 0;
    121       1.1    cube 
    122       1.1    cube 	return 1;
    123       1.1    cube }
    124       1.1    cube 
    125       1.1    cube static void
    126       1.8  dyoung attimer_isa_attach(device_t parent, device_t self, void *aux)
    127       1.1    cube {
    128       1.8  dyoung 	struct attimer_softc *sc = device_private(self);
    129       1.1    cube 	struct isa_attach_args *ia = aux;
    130       1.1    cube 
    131      1.10    cube 	sc->sc_dev = self;
    132       1.1    cube 	sc->sc_iot = ia->ia_iot;
    133       1.1    cube 
    134       1.5     uwe 	aprint_naive(": AT Timer\n");
    135       1.1    cube 	aprint_normal(": AT Timer\n");
    136       1.1    cube 
    137       1.9  dyoung 	sc->sc_size = 4;
    138       1.9  dyoung 	if (bus_space_map(sc->sc_iot, IO_TIMER1, sc->sc_size, 0,
    139       1.9  dyoung 	                  &sc->sc_ioh) != 0)
    140      1.10    cube 		aprint_error_dev(self, "could not map registers\n");
    141       1.1    cube 	else
    142       1.1    cube 		attimer_attach(sc);
    143       1.1    cube }
    144