sys/arch/cesfic/dev/zs_pcc.c

   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(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 }