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com_mainbus.c revision 1.17 
      1 /*	$NetBSD: com_mainbus.c,v 1.17 2008/03/27 15:21:46 tsutsui Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 Soren S. Jorvang.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions, and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25  * SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.17 2008/03/27 15:21:46 tsutsui Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/device.h>
     34 #include <sys/termios.h>
     35 
     36 #include <machine/autoconf.h>
     37 #include <machine/intr.h>
     38 #include <machine/bus.h>
     39 
     40 #include <dev/ic/comreg.h>
     41 #include <dev/ic/comvar.h>
     42 
     43 #include <cobalt/cobalt/console.h>
     44 #include <cobalt/dev/com_mainbusvar.h>
     45 
     46 struct com_mainbus_softc {
     47 	struct com_softc sc_com;
     48 	void *sc_ih;
     49 };
     50 
     51 #define COM_MAINBUS_FREQ	(COM_FREQ * 10)
     52 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
     53 
     54 static int	com_mainbus_probe(device_t, cfdata_t , void *);
     55 static void	com_mainbus_attach(device_t, device_t, void *);
     56 
     57 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
     58     com_mainbus_probe, com_mainbus_attach, NULL, NULL);
     59 
     60 int
     61 com_mainbus_probe(device_t parent, cfdata_t match, void *aux)
     62 {
     63 
     64 	switch (cobalt_id) {
     65 	case COBALT_ID_RAQ:
     66 	case COBALT_ID_QUBE2:
     67 	case COBALT_ID_RAQ2:
     68 		return 1;
     69 	}
     70 
     71 	return 0;
     72 }
     73 
     74 void
     75 com_mainbus_attach(device_t parent, device_t self, void *aux)
     76 {
     77 	struct com_mainbus_softc *msc = device_private(self);
     78 	struct com_softc *sc = &msc->sc_com;
     79 	struct mainbus_attach_args *maa = aux;
     80 	bus_space_handle_t	ioh;
     81 
     82 	sc->sc_dev = self;
     83 	if (!com_is_console(maa->ma_iot, maa->ma_addr, &ioh) &&
     84 	    bus_space_map(maa->ma_iot, maa->ma_addr, COM_NPORTS, 0, &ioh)) {
     85 		aprint_error(": can't map i/o space\n");
     86 		return;
     87 	}
     88 	COM_INIT_REGS(sc->sc_regs, maa->ma_iot, ioh, maa->ma_addr);
     89 
     90 	sc->sc_frequency = COM_MAINBUS_FREQ;
     91 
     92 	com_attach_subr(sc);
     93 
     94 	cpu_intr_establish(maa->ma_level, IPL_SERIAL, comintr, sc);
     95 
     96 	return;
     97 }
     98 
     99 void
    100 com_mainbus_cnprobe(struct consdev *cn)
    101 {
    102 
    103 	cn->cn_pri = (console_present != 0 && cobalt_id != COBALT_ID_QUBE2700)
    104 	    ? CN_NORMAL : CN_DEAD;
    105 }
    106 
    107 void
    108 com_mainbus_cninit(struct consdev *cn)
    109 {
    110 
    111 	comcnattach(0, COM_BASE, 115200, COM_MAINBUS_FREQ, COM_TYPE_NORMAL,
    112 	    CONMODE);
    113 }
    114