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zs_pcc.c revision 1.8 
      1 /*	$NetBSD: zs_pcc.c,v 1.8 2007/12/03 15:33:26 ad Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997, 1999
      5  *	Matthias Drochner.  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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  *
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: zs_pcc.c,v 1.8 2007/12/03 15:33:26 ad Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/proc.h>
     35 #include <sys/device.h>
     36 #include <sys/conf.h>
     37 #include <sys/file.h>
     38 #include <sys/ioctl.h>
     39 #include <sys/tty.h>
     40 #include <sys/time.h>
     41 #include <sys/kernel.h>
     42 #include <sys/syslog.h>
     43 
     44 #include <dev/cons.h>
     45 #include <dev/ic/z8530reg.h>
     46 #include <machine/z8530var.h>
     47 
     48 #include <machine/cpu.h>
     49 #include <machine/autoconf.h>
     50 
     51 #include <cesfic/cesfic/isr.h>
     52 
     53 #include <cesfic/dev/zsvar.h>
     54 
     55 extern void sic_enable_int __P((int, int, int, int, int));
     56 
     57 static int	zsc_pcc_match  __P((struct device *, struct cfdata *, void *));
     58 static void	zsc_pcc_attach __P((struct device *, struct device *, void *));
     59 
     60 static char *zsbase;
     61 
     62 CFATTACH_DECL(zsc_pcc, sizeof(struct zsc_softc),
     63     zsc_pcc_match, zsc_pcc_attach, NULL, NULL);
     64 
     65 static int
     66 zsc_pcc_match(parent, cf, aux)
     67 	struct device *parent;
     68 	struct cfdata *cf;
     69 	void *aux;
     70 {
     71 	return (1);
     72 }
     73 
     74 static void
     75 zsc_pcc_attach(parent, self, aux)
     76 	struct device *parent;
     77 	struct device *self;
     78 	void *aux;
     79 {
     80 	struct zsc_softc *zsc = (void *) self;
     81 	static int didintr;
     82 
     83 	if (!zsbase)
     84 		mainbus_map(0x58000000, 0x10000, 0, (void *)&zsbase);
     85 
     86 	/* Do common parts of SCC configuration. */
     87 	zs_config(zsc, zsbase);
     88 
     89 	/*
     90 	 * Now safe to install interrupt handlers.  Note the arguments
     91 	 * to the interrupt handlers aren't used.  Note, we only do this
     92 	 * once since both SCCs interrupt at the same level and vector.
     93 	 */
     94 	if (didintr == 0) {
     95 		didintr = 1;
     96 		(void) isrlink(zshard, zsc, 4, ISRPRI_TTY);
     97 		sic_enable_int(19, 0, 4, 4, 0);
     98 	}
     99 	zsc->zsc_softintr_cookie = softint_establish(SOFTINT_SERIAL,
    100 	    (void (*)(void *))zsc_intr_soft, zsc);
    101 
    102 	zs_write_reg(zsc->zsc_cs[0], 2, 0x18 + ZSHARD_PRI);
    103 	zs_write_reg(zsc->zsc_cs[0], 9, ZSWR9_MASTER_IE);
    104 }
    105 
    106 void
    107 zs_cnattach(base)
    108 	void *base;
    109 {
    110 	zsbase = base;
    111 
    112 	zs_cninit(zsbase);
    113 }
    114