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com_mainbus.c revision 1.10
      1  1.10     cube /*	$NetBSD: com_mainbus.c,v 1.10 2008/03/14 15:09:09 cube Exp $	*/
      2   1.1  thorpej 
      3   1.1  thorpej /*-
      4   1.1  thorpej  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5   1.1  thorpej  * All rights reserved.
      6   1.1  thorpej  *
      7   1.1  thorpej  * This code is derived from software contributed to The NetBSD Foundation
      8   1.1  thorpej  * by Jason R. Thorpe.
      9   1.1  thorpej  *
     10   1.1  thorpej  * Redistribution and use in source and binary forms, with or without
     11   1.1  thorpej  * modification, are permitted provided that the following conditions
     12   1.1  thorpej  * are met:
     13   1.1  thorpej  * 1. Redistributions of source code must retain the above copyright
     14   1.1  thorpej  *    notice, this list of conditions and the following disclaimer.
     15   1.1  thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1  thorpej  *    notice, this list of conditions and the following disclaimer in the
     17   1.1  thorpej  *    documentation and/or other materials provided with the distribution.
     18   1.1  thorpej  * 3. All advertising materials mentioning features or use of this software
     19   1.1  thorpej  *    must display the following acknowledgement:
     20   1.1  thorpej  *	This product includes software developed by the NetBSD
     21   1.1  thorpej  *	Foundation, Inc. and its contributors.
     22   1.1  thorpej  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23   1.1  thorpej  *    contributors may be used to endorse or promote products derived
     24   1.1  thorpej  *    from this software without specific prior written permission.
     25   1.1  thorpej  *
     26   1.1  thorpej  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27   1.1  thorpej  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28   1.1  thorpej  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29   1.1  thorpej  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30   1.1  thorpej  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31   1.1  thorpej  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32   1.1  thorpej  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33   1.1  thorpej  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34   1.1  thorpej  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35   1.1  thorpej  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36   1.1  thorpej  * POSSIBILITY OF SUCH DAMAGE.
     37   1.1  thorpej  */
     38   1.1  thorpej 
     39   1.1  thorpej #include "opt_algor_p4032.h"
     40   1.1  thorpej 
     41   1.1  thorpej #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     42   1.1  thorpej 
     43  1.10     cube __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.10 2008/03/14 15:09:09 cube Exp $");
     44   1.1  thorpej 
     45   1.1  thorpej #include <sys/param.h>
     46   1.1  thorpej #include <sys/systm.h>
     47   1.1  thorpej #include <sys/ioctl.h>
     48   1.1  thorpej #include <sys/select.h>
     49   1.1  thorpej #include <sys/tty.h>
     50   1.1  thorpej #include <sys/proc.h>
     51   1.1  thorpej #include <sys/user.h>
     52   1.1  thorpej #include <sys/conf.h>
     53   1.1  thorpej #include <sys/file.h>
     54   1.1  thorpej #include <sys/uio.h>
     55   1.1  thorpej #include <sys/kernel.h>
     56   1.1  thorpej #include <sys/syslog.h>
     57   1.1  thorpej #include <sys/types.h>
     58   1.1  thorpej #include <sys/device.h>
     59   1.1  thorpej 
     60   1.1  thorpej #include <machine/autoconf.h>
     61   1.1  thorpej #include <machine/intr.h>
     62   1.1  thorpej #include <machine/bus.h>
     63   1.1  thorpej 
     64   1.1  thorpej #include <dev/ic/comreg.h>
     65   1.1  thorpej #include <dev/ic/comvar.h>
     66   1.1  thorpej 
     67   1.1  thorpej struct com_mainbus_softc {
     68   1.1  thorpej 	struct	com_softc sc_com;	/* real "com" softc */
     69   1.1  thorpej 
     70   1.1  thorpej 	/* mainbus-specific goo. */
     71   1.1  thorpej 	void	*sc_ih;			/* interrupt handler */
     72   1.1  thorpej };
     73   1.1  thorpej 
     74  1.10     cube int	com_mainbus_match(device_t, cfdata_t , void *);
     75  1.10     cube void	com_mainbus_attach(device_t, device_t, void *);
     76   1.1  thorpej void	com_mainbus_cleanup(void *);
     77   1.1  thorpej 
     78  1.10     cube CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
     79   1.7  thorpej     com_mainbus_match, com_mainbus_attach, NULL, NULL);
     80   1.1  thorpej 
     81   1.1  thorpej int
     82  1.10     cube com_mainbus_match(device_t parent, cfdata_t match, void *aux)
     83   1.1  thorpej {
     84   1.1  thorpej 	struct mainbus_attach_args *ma = aux;
     85   1.1  thorpej 
     86   1.1  thorpej 	/* Always present. */
     87   1.4  thorpej 	if (strcmp(ma->ma_name, match->cf_name) == 0)
     88   1.1  thorpej 		return (1);
     89   1.1  thorpej 
     90   1.1  thorpej 	return (0);
     91   1.1  thorpej }
     92   1.1  thorpej 
     93   1.1  thorpej void
     94  1.10     cube com_mainbus_attach(device_t parent, device_t self, void *aux)
     95   1.1  thorpej {
     96  1.10     cube 	struct com_mainbus_softc *msc = device_private(self);
     97   1.1  thorpej 	struct com_softc *sc = &msc->sc_com;
     98   1.1  thorpej 	struct mainbus_attach_args *ma = aux;
     99   1.8  gdamore 	bus_space_handle_t ioh;
    100   1.1  thorpej 
    101  1.10     cube 	sc->sc_dev = self;
    102   1.8  gdamore 	if (com_is_console(ma->ma_st, ma->ma_addr, &ioh) == 0 &&
    103   1.8  gdamore 	    bus_space_map(ma->ma_st, ma->ma_addr, COM_NPORTS, 0, &ioh) != 0) {
    104  1.10     cube 		aprint_error(": can't map i/o space\n");
    105   1.1  thorpej 		return;
    106   1.1  thorpej 	}
    107   1.8  gdamore 	COM_INIT_REGS(sc->sc_regs, ma->ma_st, ioh, ma->ma_addr);
    108   1.1  thorpej 	sc->sc_frequency = COM_FREQ;
    109   1.1  thorpej 
    110   1.1  thorpej 	com_attach_subr(sc);
    111   1.1  thorpej 
    112   1.3  thorpej 	msc->sc_ih = (*algor_intr_establish)(ma->ma_irq, comintr, sc);
    113   1.1  thorpej 	if (msc->sc_ih == NULL) {
    114  1.10     cube 		aprint_error_dev(self, "unable to establish interrupt\n");
    115   1.1  thorpej 		return;
    116   1.1  thorpej 	}
    117   1.1  thorpej 
    118   1.9   dyoung 	if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) {
    119  1.10     cube 		aprint_error_dev(self, "could not establish shutdown hook");
    120   1.9   dyoung 	}
    121   1.9   dyoung 
    122   1.1  thorpej }
    123