[src/trunk]: src/sys/arch/hpcarm/dev implement a atmelgpio.c

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

details:   https://anonhg.NetBSD.org/src/rev/8ee314fedfa3
branches:  trunk
changeset: 513470:8ee314fedfa3
user:      ichiro <ichiro%NetBSD.org@localhost>
date:      Wed Aug 01 07:59:43 2001 +0000

description:
implement a atmelgpio.c
this is initial version, only frame.

diffstat:

 sys/arch/hpcarm/dev/ipaq_atmelgpio.c |  147 +++++++++++++++++++++++++++++++++++
 1 files changed, 147 insertions(+), 0 deletions(-)

diffs (151 lines):

diff -r 1d81da7ba86e -r 8ee314fedfa3 sys/arch/hpcarm/dev/ipaq_atmelgpio.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/hpcarm/dev/ipaq_atmelgpio.c      Wed Aug 01 07:59:43 2001 +0000
@@ -0,0 +1,147 @@
+/*     $NetBSD: ipaq_atmelgpio.c,v 1.1 2001/08/01 07:59:43 ichiro Exp $        */
+
+/*-
+ * Copyright (c) 2001 The NetBSD Foundation, Inc.  All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Ichiro FUKUHARA (ichiro%ichiro.org@localhost).
+ *
+ * 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.
+ */
+/*
+ * iPAQ uses Atmel microcontroller to service a few of peripheral devices.
+ * This controller connect to UART1 of SA11x0.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/types.h>
+#include <sys/conf.h>
+#include <sys/file.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/kthread.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+
+#include <hpcarm/dev/ipaq_saipvar.h>
+#include <hpcarm/dev/ipaq_gpioreg.h>
+#include <hpcarm/dev/ipaq_atmel.h>
+#include <hpcarm/sa11x0/sa11x0_comreg.h>
+#include <hpcarm/sa11x0/sa11x0_reg.h>
+
+struct atmelgpio_softc {
+       struct device           sc_dev;
+       bus_space_tag_t         sc_iot;
+       bus_space_handle_t      sc_ioh;
+       struct ipaq_softc       *sc_parent;
+};
+
+static int     atmelgpio_match(struct device *, struct cfdata *, void *);
+static void    atmelgpio_attach(struct device *, struct device *, void *);
+static int     atmelgpio_print(void *, const char *);
+static int     atmelgpio_search(struct device *, struct cfdata *, void *);
+static void    atmelgpio_init(struct atmelgpio_softc *);
+
+struct cfattach atmelgpio_ca = {
+       sizeof(struct atmelgpio_softc), atmelgpio_match, atmelgpio_attach
+};
+
+static int
+atmelgpio_match(parent, cf, aux)
+       struct device *parent;
+       struct cfdata *cf;
+       void *aux;
+{
+       return (1);
+}
+
+static void
+atmelgpio_attach(parent, self, aux)
+       struct device *parent;
+       struct device *self;
+       void *aux;
+{
+       struct atmelgpio_softc *sc = (struct atmelgpio_softc *)self;
+       struct ipaq_softc *psc = (struct ipaq_softc *)parent;
+
+       printf("\n");
+       printf("%s: Atmel microcontroller GPIO\n",  sc->sc_dev.dv_xname);
+
+       sc->sc_iot = psc->sc_iot;
+       sc->sc_ioh = psc->sc_ioh;
+       sc->sc_parent = (struct ipaq_softc *)parent;
+
+       if (bus_space_map(sc->sc_iot, SACOM1_BASE, SACOM_NPORTS, 0,
+                        &sc->sc_ioh)) {
+                printf("%s: unable to map of UART1 registers\n", sc->sc_dev.dv_xname);
+                return;
+        }
+
+       atmelgpio_init(sc);
+
+       /*
+        *  Attach each devices
+        */
+
+       config_search(atmelgpio_search, self, NULL);
+}
+
+static int
+atmelgpio_search(parent, cf, aux)
+       struct device *parent;
+       struct cfdata *cf;
+       void *aux;
+{
+       if ((*cf->cf_attach->ca_match)(parent, cf, NULL) > 0)
+               config_attach(parent, cf, NULL, atmelgpio_print);
+       return 0;
+}
+
+
+static int
+atmelgpio_print(aux, name)
+       void *aux;
+       const char *name;
+{
+       return (UNCONF);
+}
+
+static void
+atmelgpio_init(sc)
+       struct atmelgpio_softc *sc;
+{
+       /* 8 bits no parity 1 stop bit */
+       bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACOM_CR0, CR0_DSS);
+
+       /* Set baud rate 115k */
+       bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACOM_CR1, 0);
+       bus_space_write_4(sc->sc_iot, sc->sc_ioh, SACOM_CR2, SACOMSPEED(115200));
+}