Home | History | Annotate | Line # | Download | only in dev 
      1 /*	$NetBSD: zs_pcc.c,v 1.9 2008/03/29 19:15:34 tsutsui 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 1.9 2008/03/29 19:15:34 tsutsui 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(int, int, int, int, int);
     56 
     57 static int	zsc_pcc_match(device_t, cfdata_t, void *);
     58 static void	zsc_pcc_attach(device_t, device_t, void *);
     59 
     60 static char *zsbase;
     61 
     62 CFATTACH_DECL_NEW(zsc_pcc, sizeof(struct zsc_softc),
     63     zsc_pcc_match, zsc_pcc_attach, NULL, NULL);
     64 
     65 static int
     66 zsc_pcc_match(device_t parent, cfdata_t cf, void *aux)
     67 {
     68 
     69 	return (1);
     70 }
     71 
     72 static void
     73 zsc_pcc_attach(device_t parent, device_t self, void *aux)
     74 {
     75 	struct zsc_softc *zsc = device_private(self);
     76 	static int didintr;
     77 
     78 	zsc->zsc_dev = self;
     79 
     80 	if (!zsbase)
     81 		mainbus_map(0x58000000, 0x10000, 0, (void *)&zsbase);
     82 
     83 	/* Do common parts of SCC configuration. */
     84 	zs_config(zsc, zsbase);
     85 
     86 	/*
     87 	 * Now safe to install interrupt handlers.  Note the arguments
     88 	 * to the interrupt handlers aren't used.  Note, we only do this
     89 	 * once since both SCCs interrupt at the same level and vector.
     90 	 */
     91 	if (didintr == 0) {
     92 		didintr = 1;
     93 		(void) isrlink(zshard, zsc, 4, ISRPRI_TTY);
     94 		sic_enable_int(19, 0, 4, 4, 0);
     95 	}
     96 	zsc->zsc_softintr_cookie = softint_establish(SOFTINT_SERIAL,
     97 	    (void (*)(void *))zsc_intr_soft, zsc);
     98 
     99 	zs_write_reg(zsc->zsc_cs[0], 2, 0x18 + ZSHARD_PRI);
    100 	zs_write_reg(zsc->zsc_cs[0], 9, ZSWR9_MASTER_IE);
    101 }
    102 
    103 void
    104 zs_cnattach(void *base)
    105 {
    106 
    107 	zsbase = base;
    108 
    109 	zs_cninit(zsbase);
    110 }
    111