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[src/trunk]: src/sys/dev/fdt split gpio, i2c, intr, and regulator helpers int...
details: https://anonhg.NetBSD.org/src/rev/31cb084ba507
branches: trunk
changeset: 812460:31cb084ba507
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Wed Dec 16 12:03:44 2015 +0000
description:
split gpio, i2c, intr, and regulator helpers into separate files
diffstat:
sys/dev/fdt/fdt_gpio.c | 145 +++++++++++++++++
sys/dev/fdt/fdt_i2c.c | 92 ++++++++++
sys/dev/fdt/fdt_intr.c | 154 ++++++++++++++++++
sys/dev/fdt/fdt_regulator.c | 135 +++++++++++++++
sys/dev/fdt/fdt_subr.c | 374 +-------------------------------------------
sys/dev/fdt/files.fdt | 6 +-
6 files changed, 533 insertions(+), 373 deletions(-)
diffs (truncated from 961 to 300 lines):
diff -r 4cb260d33b19 -r 31cb084ba507 sys/dev/fdt/fdt_gpio.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/fdt/fdt_gpio.c Wed Dec 16 12:03:44 2015 +0000
@@ -0,0 +1,145 @@
+/* $NetBSD: fdt_gpio.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: fdt_gpio.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kmem.h>
+
+#include <libfdt.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/fdt/fdt_openfirm.h>
+#include <dev/fdt/fdtvar.h>
+
+struct fdtbus_gpio_controller {
+ device_t gc_dev;
+ int gc_phandle;
+ const struct fdtbus_gpio_controller_func *gc_funcs;
+
+ struct fdtbus_gpio_controller *gc_next;
+};
+
+static struct fdtbus_gpio_controller *fdtbus_gc = NULL;
+
+int
+fdtbus_register_gpio_controller(device_t dev, int phandle,
+ const struct fdtbus_gpio_controller_func *funcs)
+{
+ struct fdtbus_gpio_controller *gc;
+
+ gc = kmem_alloc(sizeof(*gc), KM_SLEEP);
+ gc->gc_dev = dev;
+ gc->gc_phandle = phandle;
+ gc->gc_funcs = funcs;
+
+ gc->gc_next = fdtbus_gc;
+ fdtbus_gc = gc;
+
+ return 0;
+}
+
+static struct fdtbus_gpio_controller *
+fdtbus_get_gpio_controller(int phandle)
+{
+ struct fdtbus_gpio_controller *gc;
+
+ for (gc = fdtbus_gc; gc; gc = gc->gc_next) {
+ if (gc->gc_phandle == phandle) {
+ return gc;
+ }
+ }
+
+ return NULL;
+}
+
+struct fdtbus_gpio_pin *
+fdtbus_gpio_acquire(int phandle, const char *prop, int flags)
+{
+ struct fdtbus_gpio_controller *gc;
+ struct fdtbus_gpio_pin *gp;
+ int gpio_phandle, len;
+ u_int *data;
+
+ gpio_phandle = fdtbus_get_phandle(phandle, prop);
+ if (gpio_phandle == -1) {
+ return NULL;
+ }
+
+ gc = fdtbus_get_gpio_controller(gpio_phandle);
+ if (gc == NULL) {
+ return NULL;
+ }
+
+ len = OF_getproplen(phandle, prop);
+ if (len < 4) {
+ return NULL;
+ }
+
+ data = kmem_alloc(len, KM_SLEEP);
+ if (OF_getprop(phandle, prop, data, len) != len) {
+ kmem_free(data, len);
+ return NULL;
+ }
+
+ gp = kmem_alloc(sizeof(*gp), KM_SLEEP);
+ gp->gp_gc = gc;
+ gp->gp_priv = gc->gc_funcs->acquire(gc->gc_dev, data, len, flags);
+ if (gp->gp_priv == NULL) {
+ kmem_free(data, len);
+ return NULL;
+ }
+
+ return gp;
+}
+
+void
+fdtbus_gpio_release(struct fdtbus_gpio_pin *gp)
+{
+ struct fdtbus_gpio_controller *gc = gp->gp_gc;
+
+ gc->gc_funcs->release(gc->gc_dev, gp->gp_priv);
+ kmem_free(gp, sizeof(*gp));
+}
+
+int
+fdtbus_gpio_read(struct fdtbus_gpio_pin *gp)
+{
+ struct fdtbus_gpio_controller *gc = gp->gp_gc;
+
+ return gc->gc_funcs->read(gc->gc_dev, gp->gp_priv);
+}
+
+void
+fdtbus_gpio_write(struct fdtbus_gpio_pin *gp, int val)
+{
+ struct fdtbus_gpio_controller *gc = gp->gp_gc;
+
+ gc->gc_funcs->write(gc->gc_dev, gp->gp_priv, val);
+}
diff -r 4cb260d33b19 -r 31cb084ba507 sys/dev/fdt/fdt_i2c.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/fdt/fdt_i2c.c Wed Dec 16 12:03:44 2015 +0000
@@ -0,0 +1,92 @@
+/* $NetBSD: fdt_i2c.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: fdt_i2c.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kmem.h>
+
+#include <libfdt.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/fdt/fdt_openfirm.h>
+#include <dev/fdt/fdtvar.h>
+
+struct fdtbus_i2c_controller {
+ device_t i2c_dev;
+ int i2c_phandle;
+ const struct fdtbus_i2c_controller_func *i2c_funcs;
+
+ struct fdtbus_i2c_controller *i2c_next;
+};
+
+static struct fdtbus_i2c_controller *fdtbus_i2c = NULL;
+
+int
+fdtbus_register_i2c_controller(device_t dev, int phandle,
+ const struct fdtbus_i2c_controller_func *funcs)
+{
+ struct fdtbus_i2c_controller *i2c;
+
+ i2c = kmem_alloc(sizeof(*i2c), KM_SLEEP);
+ i2c->i2c_dev = dev;
+ i2c->i2c_phandle = phandle;
+ i2c->i2c_funcs = funcs;
+
+ i2c->i2c_next = fdtbus_i2c;
+ fdtbus_i2c = i2c;
+
+ return 0;
+}
+
+static struct fdtbus_i2c_controller *
+fdtbus_get_i2c_controller(int phandle)
+{
+ struct fdtbus_i2c_controller *i2c;
+
+ for (i2c = fdtbus_i2c; i2c; i2c = i2c->i2c_next) {
+ if (i2c->i2c_phandle == phandle) {
+ return i2c;
+ }
+ }
+
+ return NULL;
+}
+
+i2c_tag_t
+fdtbus_get_i2c_tag(int phandle)
+{
+ struct fdtbus_i2c_controller *i2c;
+
+ i2c = fdtbus_get_i2c_controller(phandle);
+ if (i2c == NULL)
+ return NULL;
+
+ return i2c->i2c_funcs->get_tag(i2c->i2c_dev);
+}
diff -r 4cb260d33b19 -r 31cb084ba507 sys/dev/fdt/fdt_intr.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/fdt/fdt_intr.c Wed Dec 16 12:03:44 2015 +0000
@@ -0,0 +1,154 @@
+/* $NetBSD: fdt_intr.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2015 Jared D. McNeill <jmcneill%invisible.ca@localhost>
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: fdt_intr.c,v 1.1 2015/12/16 12:03:44 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/kmem.h>
+
+#include <libfdt.h>
+#include <dev/ofw/openfirm.h>
+#include <dev/fdt/fdt_openfirm.h>
+#include <dev/fdt/fdtvar.h>
+
+struct fdtbus_interrupt_controller {
+ device_t ic_dev;
+ int ic_phandle;
+ const struct fdtbus_interrupt_controller_func *ic_funcs;
+
+ struct fdtbus_interrupt_controller *ic_next;
+};
+
+static struct fdtbus_interrupt_controller *fdtbus_ic = NULL;
+
+static int
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