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      1 /*	$NetBSD: com_mainbus.c,v 1.13 2018/12/08 17:46:12 thorpej Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: com_mainbus.c,v 1.13 2018/12/08 17:46:12 thorpej Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 
     36 #include <sys/termios.h>
     37 #include <dev/cons.h>
     38 #include <sys/conf.h>
     39 #include <sys/bus.h>
     40 
     41 #include <machine/intr.h>
     42 #include <machine/autoconf.h>
     43 #include <machine/mmeye.h>
     44 
     45 #include <dev/ic/comvar.h>
     46 #include <dev/ic/comreg.h>
     47 
     48 #ifndef COMCN_SPEED
     49 #define COMCN_SPEED	19200
     50 #endif
     51 #ifndef CONADDR
     52 #define CONADDR		0xa4000000
     53 #endif
     54 #ifndef CONMODE
     55 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
     56 #endif
     57 
     58 struct com_mainbus_softc {
     59 	struct	com_softc sc_com;	/* real "com" softc */
     60 };
     61 
     62 int com_mainbus_match(device_t, cfdata_t , void *);
     63 void com_mainbus_attach(device_t, device_t, void *);
     64 void comcnprobe(struct consdev *);
     65 void comcninit(struct consdev *);
     66 
     67 CFATTACH_DECL_NEW(com_mainbus, sizeof(struct com_mainbus_softc),
     68     com_mainbus_match, com_mainbus_attach, NULL, NULL);
     69 
     70 int
     71 com_mainbus_match(device_t parent, cfdata_t match, void *aux)
     72 {
     73 	struct mainbus_attach_args *ma = aux;
     74 
     75 	if (strcmp(ma->ma_name, match->cf_name) == 0)
     76 		return (1);
     77 
     78 	return (0);
     79 }
     80 
     81 void
     82 com_mainbus_attach(device_t parent, device_t self, void *aux)
     83 {
     84 	struct mainbus_attach_args *ma = aux;
     85 	struct com_mainbus_softc *sc = device_private(self);
     86 	struct com_softc *csc = &sc->sc_com;
     87 #if defined(SH7750R)
     88 	const bus_space_tag_t iot = SH3_BUS_SPACE_PCMCIA_IO8;
     89 #else
     90 	const bus_space_tag_t iot = 0;
     91 #endif
     92 	bus_space_handle_t ioh;
     93 
     94 	if (!com_is_console(iot, ma->ma_addr1, &ioh))
     95 		if (bus_space_map(iot, ma->ma_addr1, COM_NPORTS, 0, &ioh)) {
     96 			aprint_error(": can't map i/o space\n");
     97 			return;
     98 		}
     99 	csc->sc_dev = self;
    100 	csc->sc_frequency = COM_FREQ;
    101 	com_init_regs(&csc->sc_regs, iot, ioh, ma->ma_addr1);
    102 
    103 	/* sanity check */
    104 	if (!comprobe1(iot, ioh)) {
    105 		aprint_error(": device problem. don't attach.\n");
    106 		return;
    107 	}
    108 
    109 	com_attach_subr(csc);
    110 
    111 	mmeye_intr_establish(ma->ma_irq1, IST_LEVEL, IPL_SERIAL, comintr, sc);
    112 }
    113 
    114 void
    115 comcnprobe(struct consdev *cp)
    116 {
    117 
    118 #ifdef  COMCONSOLE
    119 	cp->cn_pri = CN_REMOTE;	/* Force a serial port console */
    120 #else
    121 	cp->cn_pri = CN_NORMAL;
    122 #endif
    123 }
    124 
    125 void
    126 comcninit(struct consdev *cp)
    127 {
    128 #if defined(SH7750R)
    129 	const bus_space_tag_t iot = SH3_BUS_SPACE_PCMCIA_IO8;
    130 #else
    131 	const bus_space_tag_t iot = 0;
    132 #endif
    133 
    134 	comcnattach(iot, CONADDR, COMCN_SPEED, COM_FREQ, COM_TYPE_NORMAL,
    135 	    CONMODE);
    136 }
    137