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      1 /*
      2  * Copyright 2006 Kyma Systems LLC.
      3  * All rights reserved.
      4  *
      5  * Written by Sanjay Lal <sanjayl (at) kymasys.com>
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project by
     18  *      Kyma Systems LLC.
     19  * 4. The name of Kyma Systems LLC may not be used to endorse
     20  *    or promote products derived from this software without specific prior
     21  *    written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY KYMA SYSTEMS LLC ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL KYMA SYSTEMS LLC
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 /* com device attachment to mainbus for MAMBO G5 simulator */
     37 
     38 #include <sys/cdefs.h>
     39 #include <sys/param.h>
     40 #include <sys/systm.h>
     41 #include <sys/device.h>
     42 #include <sys/tty.h>
     43 
     44 #include <sys/bus.h>
     45 #include <dev/ofw/openfirm.h>
     46 
     47 #include <dev/ic/comreg.h>
     48 #include <dev/ic/comvar.h>
     49 
     50 #include <machine/autoconf.h>
     51 
     52 struct com_mainbus_softc
     53 {
     54     struct com_softc sc_com;    /* real "com" softc */
     55     void *sc_ih;                /* interrupt handler */
     56 };
     57 
     58 int com_mainbus_probe(device_t, cfdata_t , void *);
     59 void com_mainbus_attach(device_t, device_t, void *);
     60 
     61 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
     62               com_mainbus_probe, com_mainbus_attach, NULL, NULL);
     63 
     64 int com_mainbus_attached = 0;
     65 int
     66 com_mainbus_probe(device_t parent, cfdata_t match, void *aux)
     67 {
     68     struct confargs *ca = aux;
     69 
     70     if (strcmp(ca->ca_name, "com") != 0)
     71         return 0;
     72 
     73     if (!com_mainbus_attached) {
     74         com_mainbus_attached = 1;
     75         return (1);
     76     }
     77     else
     78         return 0;
     79 }
     80 
     81 void
     82 com_mainbus_attach(device_t parent, device_t self, void *aux)
     83 {
     84     struct com_mainbus_softc *msc = device_private(self);
     85     struct com_softc *sc = &msc->sc_com;
     86     int serial;
     87     int interrupts[8];
     88     bus_space_tag_t iot;
     89     bus_space_handle_t ioh;
     90     bus_addr_t iobase;
     91 
     92     sc->sc_dev = self;
     93 
     94     serial = OF_finddevice("/ht@0/isa@4/serial@0x3f8");
     95     if (serial != -1) {
     96         (void)OF_getprop(serial, "interrupts", interrupts, sizeof(interrupts));
     97     }
     98 
     99 
    100     iot = (bus_space_tag_t)0xf4000000;
    101     iobase = 0x3f8;
    102     comcnattach(iot, iobase, 9600, 1843200, COM_TYPE_NORMAL, (CREAD | CS8));
    103     bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh);
    104     com_init_regs(&sc->sc_regs, iot, ioh, iobase);
    105 
    106     sc->sc_frequency = 1843200;
    107 
    108     com_attach_subr(sc);
    109 #if 1
    110     msc->sc_ih =
    111         intr_establish_xname(interrupts[0], IST_LEVEL, IPL_SERIAL, comintr, sc,
    112 	    device_xname(self));
    113 
    114     if (msc->sc_ih == NULL)
    115         panic("failed to establish int handler");
    116 #endif
    117 
    118 
    119 }
    120