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      1 /*	$NetBSD: com_mainbus.c,v 1.22 2018/12/08 17:46:10 thorpej 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 1.22 2018/12/08 17:46:10 thorpej Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/bus.h>
     33 #include <sys/cpu.h>
     34 #include <sys/device.h>
     35 #include <sys/intr.h>
     36 #include <sys/systm.h>
     37 #include <sys/termios.h>
     38 
     39 #include <machine/autoconf.h>
     40 
     41 #include <dev/ic/comreg.h>
     42 #include <dev/ic/comvar.h>
     43 
     44 #include <cobalt/cobalt/console.h>
     45 #include <cobalt/dev/com_mainbusvar.h>
     46 
     47 struct com_mainbus_softc {
     48 	struct com_softc sc_com;
     49 	void *sc_ih;
     50 };
     51 
     52 #define COM_MAINBUS_FREQ	(COM_FREQ * 10)
     53 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
     54 
     55 static int	com_mainbus_probe(device_t, cfdata_t , void *);
     56 static void	com_mainbus_attach(device_t, device_t, void *);
     57 
     58 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
     59     com_mainbus_probe, com_mainbus_attach, NULL, NULL);
     60 
     61 int
     62 com_mainbus_probe(device_t parent, cfdata_t match, void *aux)
     63 {
     64 
     65 	switch (cobalt_id) {
     66 	case COBALT_ID_RAQ:
     67 	case COBALT_ID_QUBE2:
     68 	case COBALT_ID_RAQ2:
     69 		return 1;
     70 	}
     71 
     72 	return 0;
     73 }
     74 
     75 void
     76 com_mainbus_attach(device_t parent, device_t self, void *aux)
     77 {
     78 	struct com_mainbus_softc *msc = device_private(self);
     79 	struct com_softc *sc = &msc->sc_com;
     80 	struct mainbus_attach_args *maa = aux;
     81 	bus_space_handle_t	ioh;
     82 
     83 	sc->sc_dev = self;
     84 	if (!com_is_console(maa->ma_iot, maa->ma_addr, &ioh) &&
     85 	    bus_space_map(maa->ma_iot, maa->ma_addr, COM_NPORTS, 0, &ioh)) {
     86 		aprint_error(": can't map i/o space\n");
     87 		return;
     88 	}
     89 	com_init_regs(&sc->sc_regs, maa->ma_iot, ioh, maa->ma_addr);
     90 
     91 	sc->sc_frequency = COM_MAINBUS_FREQ;
     92 
     93 	com_attach_subr(sc);
     94 
     95 	cpu_intr_establish(maa->ma_level, IPL_SERIAL, comintr, sc);
     96 
     97 	return;
     98 }
     99 
    100 void
    101 com_mainbus_cnprobe(struct consdev *cn)
    102 {
    103 
    104 	cn->cn_pri = (console_present != 0 && cobalt_id != COBALT_ID_QUBE2700)
    105 	    ? CN_NORMAL : CN_DEAD;
    106 }
    107 
    108 extern struct mips_bus_space cobalt_bs;
    109 
    110 void
    111 com_mainbus_cninit(struct consdev *cn)
    112 {
    113 
    114 	comcnattach(&cobalt_bs, COM_BASE, 115200, COM_MAINBUS_FREQ, COM_TYPE_NORMAL,
    115 	    CONMODE);
    116 }
    117