[src/trunk]: src/sys/arch/atari Atari specific stuff to implement the Milan f...

[leo <leo%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a6d7b3e6eccc
branches:  trunk
changeset: 507209:a6d7b3e6eccc
user:      leo <leo%NetBSD.org@localhost>
date:      Fri Mar 16 21:31:55 2001 +0000

description:
Atari specific stuff to implement the Milan floppy. The Milan uses standard
ISA floppy hardware. Configure as:
    fdcisa0 at isa? port 0x3f0 irq 6 drq 2

diffstat:

 sys/arch/atari/conf/files.atari |   11 +-
 sys/arch/atari/isa/fdcisa.c     |  207 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 217 insertions(+), 1 deletions(-)

diffs (237 lines):

diff -r a7a699b26545 -r a6d7b3e6eccc sys/arch/atari/conf/files.atari
--- a/sys/arch/atari/conf/files.atari   Fri Mar 16 21:09:05 2001 +0000
+++ b/sys/arch/atari/conf/files.atari   Fri Mar 16 21:31:55 2001 +0000
@@ -1,5 +1,5 @@
 #
-#      $NetBSD: files.atari,v 1.72 2001/03/09 20:55:46 leo Exp $
+#      $NetBSD: files.atari,v 1.73 2001/03/16 21:31:55 leo Exp $
 
 maxpartitions 16
 
@@ -156,6 +156,15 @@
 include "dev/isa/files.isa"
 include "dev/ata/files.ata"
 
+# Milan floppy driver - uses 'generic' isa version of fd.c
+device  fdcisa  {drive = -1}: isadma
+file    arch/atari/isa/fdcisa.c
+attach  fdcisa at isa
+device  fdisa: disk
+attach  fdisa at fdcisa
+file    dev/isa/fd.c
+major   {fdisa = 2}
+
 attach wdc at mainbus with wdc_mb
 file   arch/atari/dev/wdc_mb.c         wdc_mb
 major  {wd = 14}
diff -r a7a699b26545 -r a6d7b3e6eccc sys/arch/atari/isa/fdcisa.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/atari/isa/fdcisa.c       Fri Mar 16 21:31:55 2001 +0000
@@ -0,0 +1,207 @@
+/*     $NetBSD: fdcisa.c,v 1.1 2001/03/16 21:31:56 leo Exp $   */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Don Ahn.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)fd.c        7.4 (Berkeley) 5/25/91
+ */
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/callout.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/isadmavar.h>
+#include <dev/isa/fdreg.h>
+#include <dev/isa/fdcvar.h>
+
+#include <atari/atari/device.h>
+
+
+/* controller driver configuration */
+int    fdc_isa_probe __P((struct device *, struct cfdata *, void *));
+void   fdc_isa_attach __P((struct device *, struct device *, void *));
+
+struct fdc_isa_softc {
+       struct fdc_softc        sc_fdc;         /* base fdc device */
+       bus_space_handle_t      sc_baseioh;     /* base I/O handle */
+};
+
+struct cfattach fdcisa_ca = {
+       sizeof(struct fdc_isa_softc), fdc_isa_probe, fdc_isa_attach
+};
+
+int
+fdc_isa_probe(parent, cfp, aux)
+       struct device   *parent;
+       struct cfdata   *cfp;
+       void            *aux;
+{
+       struct isa_attach_args  *ia = aux;
+       static int              fdc_matched = 0;
+       bus_space_tag_t         iot;
+       bus_space_handle_t      ioh, ctl_ioh, base_ioh;
+
+       if (!atari_realconfig)
+               return 0;
+
+       /* Match only once */
+       if (fdc_matched)
+               return 0;
+
+       iot = ia->ia_iot;
+
+       /*
+        * Disallow wildcarded i/o address and drq
+        */
+       if ((ia->ia_iobase == IOBASEUNK) || (ia->ia_drq == DRQUNK))
+               return 0;
+
+       /* Map the i/o space. */
+       if (bus_space_map(iot, ia->ia_iobase, 6 /*  FDC_NPORT */, 0,
+                                               (caddr_t*)&base_ioh)) {
+               printf("fdcisaprobe: cannot map io-area\n");
+               return 0;
+       }
+       if (bus_space_subregion(iot, base_ioh, 2, 4, &ioh)) {
+               bus_space_unmap(iot, base_ioh, 6);
+               return (0);
+       }
+
+       if (bus_space_map(iot, ia->ia_iobase + fdctl + 2, 1, 0, &ctl_ioh)) {
+               bus_space_unmap(iot, base_ioh, 6);
+               return (0);
+       }
+
+       /* Not needed for the rest of the probe. */
+       bus_space_unmap(iot, ctl_ioh, 1);
+
+       /* reset */
+       bus_space_write_1(iot, ioh, fdout, 0);
+       delay(100);     
+       bus_space_write_1(iot, ioh, fdout, FDO_FRST);
+
+       /* see if it can handle a command */
+       if (out_fdc(iot, ioh, NE7CMD_SPECIFY) < 0)
+               goto out;
+       out_fdc(iot, ioh, 0xdf);
+       out_fdc(iot, ioh, 2);
+
+       fdc_matched   = 1;
+       ia->ia_iosize = FDC_NPORT;
+       ia->ia_msize  = 0;
+out:
+       bus_space_unmap(iot, base_ioh, 6 /* FDC_NPORT */);
+
+       return fdc_matched;
+}
+
+void
+fdc_isa_attach(parent, self, aux)
+struct device  *parent, *self;
+void           *aux;
+{
+       struct fdc_softc        *fdc = (void *)self;
+       struct fdc_isa_softc    *isc = (void *)self;
+       struct isa_attach_args  *ia = aux;
+       printf("\n");
+
+       fdc->sc_iot = ia->ia_iot;
+       fdc->sc_ic = ia->ia_ic;
+       fdc->sc_drq = ia->ia_drq;
+
+       if (bus_space_map(fdc->sc_iot, ia->ia_iobase, 6 /* FDC_NPORT */, 0,
+           &isc->sc_baseioh)) {
+               printf("%s: unable to map I/O space\n", fdc->sc_dev.dv_xname);
+               return;
+       }
+
+       if (bus_space_subregion(fdc->sc_iot, isc->sc_baseioh, 2, 4,
+           &fdc->sc_ioh)) {
+               printf("%s: unable to subregion I/O space\n",
+                   fdc->sc_dev.dv_xname);
+               return;
+       }
+
+       if (bus_space_map(fdc->sc_iot, ia->ia_iobase + fdctl + 2, 1, 0,
+           &fdc->sc_fdctlioh)) {
+               printf("%s: unable to map CTL I/O space\n",
+                   fdc->sc_dev.dv_xname);
+               return;
+       }
+
+       fdc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
+           IPL_BIO, fdcintr, fdc);
+
+       fdcattach(fdc);
+}