[src/trunk]: src/sys/dev/isa Add driver for Addonics FlexPort 8S (and probabl...

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

details:   https://anonhg.NetBSD.org/src/rev/5bc8fdbb04a8
branches:  trunk
changeset: 485188:5bc8fdbb04a8
user:      explorer <explorer%NetBSD.org@localhost>
date:      Fri Apr 21 17:48:30 2000 +0000

description:
Add driver for Addonics FlexPort 8S (and probably 4S, but not tested)

diffstat:

 sys/dev/isa/addcom_isa.c |  256 +++++++++++++++++++++++++++++++++++++++++++++++
 sys/dev/isa/files.isa    |    7 +-
 2 files changed, 262 insertions(+), 1 deletions(-)

diffs (281 lines):

diff -r fa047838b05f -r 5bc8fdbb04a8 sys/dev/isa/addcom_isa.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/isa/addcom_isa.c  Fri Apr 21 17:48:30 2000 +0000
@@ -0,0 +1,256 @@
+/*     $NetBSD: addcom_isa.c,v 1.1 2000/04/21 17:48:30 explorer Exp $  */
+
+/*
+ * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
+ * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
+ *
+ * This code is derived from public-domain software written by
+ * Roland McGrath, and information provided by David Muir Sharnoff.
+ *
+ * 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 Charles M. Hannum.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ */
+
+/*
+ * This code was written and tested with the Addonics FlexPort 8S.
+ * It has 8 ports, using 16650-compatible chips, sharing a single
+ * interrupt.
+ *
+ * An interrupt status register exists at 0x240, according to the
+ * skimpy documentation supplied, but it isn't clear that the address
+ * of this register changes if the card base address changes.
+ * The code assumes it will, this needs to be tested.
+ *
+ * This card is different from the boca or other cards in that ports
+ * 0..5 are from addresses 0x108..0x137, and 6..7 are from 0x200..0x20f,
+ * making a gap that the other cards do not have.
+ *
+ * The addresses which are documented are 0x108, 0x1108, 0x1d08, and
+ * 0x8508, for the base (port 0) address.
+ *
+ * --Michael <explorer%netbsd.org@localhost> -- April 21, 2000
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/termios.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/ic/comreg.h>
+#include <dev/ic/comvar.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/com_multi.h>
+
+#define        NSLAVES 8
+
+/*
+ * These may be bogus... XXXMLG
+ */
+#define STATUS_OFFSET  0x138           /* offset from board base address */
+#define        STATUS_SIZE     8               /* 8 bytes reserved for irq status */
+
+struct addcom_softc {
+       struct device sc_dev;
+       void *sc_ih;
+
+       bus_space_tag_t sc_iot;
+       int sc_iobase;
+
+       int sc_alive;                   /* mask of slave units attached */
+       void *sc_slaves[NSLAVES];       /* com device unit numbers */
+       bus_space_handle_t sc_slaveioh[NSLAVES];
+       bus_space_handle_t sc_statusioh;
+};
+
+#define SLAVE_IOBASE_OFFSET 0x108
+static int slave_iobases[8] = {
+       0x108,  /* port 0, base port */
+       0x110,
+       0x118,
+       0x120,
+       0x128,
+       0x130,
+       0x200,  /* port 7, note address skip... */
+       0x208
+};
+
+int addcomprobe __P((struct device *, struct cfdata *, void *));
+void addcomattach __P((struct device *, struct device *, void *));
+int addcomintr __P((void *));
+int addcomprint __P((void *, const char *));
+
+struct cfattach addcom_isa_ca = {
+       sizeof(struct addcom_softc), addcomprobe, addcomattach,
+};
+
+int
+addcomprobe(struct device *parent, struct cfdata *self, void *aux)
+{
+       struct isa_attach_args *ia = aux;
+       int iobase = ia->ia_iobase;
+       bus_space_tag_t iot = ia->ia_iot;
+       bus_space_handle_t ioh;
+       int i, rv = 1;
+
+       /*
+        * Do the normal com probe for the first UART and assume
+        * its presence, and the ability to map the other UARTS,
+        * means there is a multiport board there.
+        * XXX Needs more robustness.
+        */
+
+       /* Disallow wildcarded i/o address. */
+       if (ia->ia_iobase == ISACF_PORT_DEFAULT)
+               return (0);
+
+       /* if the first port is in use as console, then it. */
+       if (com_is_console(iot, iobase, 0))
+               goto checkmappings;
+
+       if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) {
+               rv = 0;
+               goto out;
+       }
+       rv = comprobe1(iot, ioh);
+       bus_space_unmap(iot, ioh, COM_NPORTS);
+       if (rv == 0)
+               goto out;
+
+checkmappings:
+       for (i = 1; i < NSLAVES; i++) {
+               iobase += slave_iobases[i] - slave_iobases[i - 1];
+
+               if (com_is_console(iot, iobase, 0))
+                       continue;
+
+               if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) {
+                       rv = 0;
+                       goto out;
+               }
+               bus_space_unmap(iot, ioh, COM_NPORTS);
+       }
+
+out:
+       if (rv)
+               ia->ia_iosize = NSLAVES * COM_NPORTS;
+       return (rv);
+}
+
+int
+addcomprint(void *aux, const char *pnp)
+{
+       struct commulti_attach_args *ca = aux;
+
+       if (pnp)
+               printf("com at %s", pnp);
+       printf(" slave %d", ca->ca_slave);
+       return (UNCONF);
+}
+
+void
+addcomattach(struct device *parent, struct device *self, void *aux)
+{
+       struct addcom_softc *sc = (void *)self;
+       struct isa_attach_args *ia = aux;
+       struct commulti_attach_args ca;
+       bus_space_tag_t iot = ia->ia_iot;
+       int i, iobase;
+
+       printf("\n");
+
+       sc->sc_iot = ia->ia_iot;
+       sc->sc_iobase = ia->ia_iobase;
+
+       for (i = 0; i < NSLAVES; i++) {
+               iobase = sc->sc_iobase
+                       + slave_iobases[i]
+                       - SLAVE_IOBASE_OFFSET;
+               if (!com_is_console(iot, iobase, &sc->sc_slaveioh[i]) &&
+                   bus_space_map(iot, iobase, COM_NPORTS, 0,
+                                 &sc->sc_slaveioh[i])) {
+                       printf("%s: can't map i/o space for slave %d\n",
+                              sc->sc_dev.dv_xname, i);
+                       return;
+               }
+       }
+
+       if (bus_space_map(iot, sc->sc_iobase + STATUS_OFFSET, STATUS_SIZE,
+                         0, &sc->sc_statusioh)) {
+               printf("%s: can't map status space\n", sc->sc_dev.dv_xname);
+               return;
+       }
+
+       for (i = 0; i < NSLAVES; i++) {
+               ca.ca_slave = i;
+               ca.ca_iot = sc->sc_iot;
+               ca.ca_ioh = sc->sc_slaveioh[i];
+               ca.ca_iobase = sc->sc_iobase
+                       + slave_iobases[i]
+                       - SLAVE_IOBASE_OFFSET;
+               ca.ca_noien = 0;
+
+               sc->sc_slaves[i] = config_found(self, &ca, addcomprint);
+               if (sc->sc_slaves[i] != NULL)
+                       sc->sc_alive |= 1 << i;
+       }
+
+       sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
+                                      IPL_SERIAL, addcomintr, sc);
+}
+
+int
+addcomintr(void *arg)
+{
+       struct addcom_softc *sc = arg;
+       bus_space_tag_t iot = sc->sc_iot;
+       int alive = sc->sc_alive;
+       int bits;
+
+       bits = bus_space_read_1(iot, sc->sc_statusioh, 0) & alive;
+       if (bits == 0)
+               return (0);
+
+       for (;;) {
+#define        TRY(n) \
+               if (bits & (1 << (n))) \
+                       comintr(sc->sc_slaves[n]);
+               TRY(0);
+               TRY(1);
+               TRY(2);
+               TRY(3);
+               TRY(4);
+               TRY(5);
+               TRY(6);
+               TRY(7);
+#undef TRY
+               bits = bus_space_read_1(iot, sc->sc_statusioh, 0) & alive;
+               if (bits == 0)
+                       return (1);
+       }
+}
diff -r fa047838b05f -r 5bc8fdbb04a8 sys/dev/isa/files.isa
--- a/sys/dev/isa/files.isa     Fri Apr 21 16:53:20 2000 +0000
+++ b/sys/dev/isa/files.isa     Fri Apr 21 17:48:30 2000 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.isa,v 1.100 2000/03/25 19:58:05 mycroft Exp $
+#      $NetBSD: files.isa,v 1.101 2000/04/21 17:48:30 explorer Exp $
 #
 # Config file and device description for machine-independent ISA code.
 # Included by ports that need it.  Requires that the SCSI files be
@@ -39,6 +39,11 @@
 attach boca at isa
 file   dev/isa/boca.c                  boca
 
+# Addonics FlexPort multiport serial card
+device addcom: commulti
+attach addcom at isa with addcom_isa
+file   dev/isa/addcom_isa.c            addcom
+
 # IBM RT PC 4-port board
 device rtfps: commulti
 attach rtfps at isa