freebsd-dev/sys/dev/extres/clk/clkdev_if.m
Jared McNeill 7a8917b25d Pass clkdev_if methods through to parent device by default.
Reviewed by:		mmel, adrian (mentor)
Approved by:		adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D5750
2016-03-28 11:51:35 +00:00

139 lines
3.2 KiB
Objective-C

#-
# 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.
#
# $FreeBSD$
#
#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;