1 files changed, 137 insertions, 0 deletions

diff --git a/sys/dev/clk/clkdev_if.m b/sys/dev/clk/clkdev_if.m
new file mode 100644
index 000000000000..8b75cfb9003b
--- /dev/null
+++ b/sys/dev/clk/clkdev_if.m
@@ -0,0 +1,137 @@
+#-
+# Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
+# 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 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 AUTHOR 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.
+#
+#
+
+#include <machine/bus.h>
+
+INTERFACE clkdev;
+
+CODE {
+	#include <sys/systm.h>
+	#include <sys/bus.h>
+	static int
+	clkdev_default_write_4(device_t dev, bus_addr_t addr, uint32_t val)
+	{
+		device_t pdev;
+
+		pdev = device_get_parent(dev);
+		if (pdev == NULL)
+			return (ENXIO);
+
+		return (CLKDEV_WRITE_4(pdev, addr, val));
+	}
+
+	static int
+	clkdev_default_read_4(device_t dev, bus_addr_t addr, uint32_t *val)
+	{
+		device_t pdev;
+
+		pdev = device_get_parent(dev);
+		if (pdev == NULL)
+			return (ENXIO);
+
+		return (CLKDEV_READ_4(pdev, addr, val));
+	}
+
+	static int
+	clkdev_default_modify_4(device_t dev, bus_addr_t addr,
+	    uint32_t clear_mask, uint32_t set_mask)
+	{
+		device_t pdev;
+
+		pdev = device_get_parent(dev);
+		if (pdev == NULL)
+			return (ENXIO);
+
+		return (CLKDEV_MODIFY_4(pdev, addr, clear_mask, set_mask));
+	}
+
+	static void
+	clkdev_default_device_lock(device_t dev)
+	{
+		device_t pdev;
+
+		pdev = device_get_parent(dev);
+		if (pdev == NULL)
+			panic("clkdev_device_lock not implemented");
+
+		CLKDEV_DEVICE_LOCK(pdev);
+	}
+
+	static void
+	clkdev_default_device_unlock(device_t dev)
+	{
+		device_t pdev;
+
+		pdev = device_get_parent(dev);
+		if (pdev == NULL)
+			panic("clkdev_device_unlock not implemented");
+
+		CLKDEV_DEVICE_UNLOCK(pdev);
+	}
+}
+
+#
+# Write single register
+#
+METHOD int write_4 {
+	device_t	dev;
+	bus_addr_t	addr;
+	uint32_t	val;
+} DEFAULT clkdev_default_write_4;
+
+#
+# Read single register
+#
+METHOD int read_4 {
+	device_t	dev;
+	bus_addr_t	addr;
+	uint32_t	*val;
+} DEFAULT clkdev_default_read_4;
+
+#
+# Modify single register
+#
+METHOD int modify_4 {
+	device_t	dev;
+	bus_addr_t	addr;
+	uint32_t	clear_mask;
+	uint32_t	set_mask;
+} DEFAULT clkdev_default_modify_4;
+
+#
+# Get exclusive access to underlying device
+#
+METHOD void device_lock {
+	device_t	dev;
+} DEFAULT clkdev_default_device_lock;
+
+#
+# Release exclusive access to underlying device
+#
+METHOD void device_unlock {
+	device_t	dev;
+} DEFAULT clkdev_default_device_unlock;