1#-
2# Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8# 1. Redistributions of source code must retain the above copyright
9#    notice, this list of conditions and the following disclaimer.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD: releng/11.0/sys/dev/extres/clk/clkdev_if.m 297350 2016-03-28 11:51:35Z jmcneill $
27#
28
29#include <machine/bus.h>
30
31INTERFACE clkdev;
32
33CODE {
34	#include <sys/systm.h>
35	#include <sys/bus.h>
36	static int
37	clkdev_default_write_4(device_t dev, bus_addr_t addr, uint32_t val)
38	{
39		device_t pdev;
40
41		pdev = device_get_parent(dev);
42		if (pdev == NULL)
43			return (ENXIO);
44
45		return (CLKDEV_WRITE_4(pdev, addr, val));
46	}
47
48	static int
49	clkdev_default_read_4(device_t dev, bus_addr_t addr, uint32_t *val)
50	{
51		device_t pdev;
52
53		pdev = device_get_parent(dev);
54		if (pdev == NULL)
55			return (ENXIO);
56
57		return (CLKDEV_READ_4(pdev, addr, val));
58	}
59
60	static int
61	clkdev_default_modify_4(device_t dev, bus_addr_t addr,
62	    uint32_t clear_mask, uint32_t set_mask)
63	{
64		device_t pdev;
65
66		pdev = device_get_parent(dev);
67		if (pdev == NULL)
68			return (ENXIO);
69
70		return (CLKDEV_MODIFY_4(pdev, addr, clear_mask, set_mask));
71	}
72
73	static void
74	clkdev_default_device_lock(device_t dev)
75	{
76		device_t pdev;
77
78		pdev = device_get_parent(dev);
79		if (pdev == NULL)
80			panic("clkdev_device_lock not implemented");
81
82		CLKDEV_DEVICE_LOCK(pdev);
83	}
84
85	static void
86	clkdev_default_device_unlock(device_t dev)
87	{
88		device_t pdev;
89
90		pdev = device_get_parent(dev);
91		if (pdev == NULL)
92			panic("clkdev_device_unlock not implemented");
93
94		CLKDEV_DEVICE_UNLOCK(pdev);
95	}
96}
97
98#
99# Write single register
100#
101METHOD int write_4 {
102	device_t	dev;
103	bus_addr_t	addr;
104	uint32_t	val;
105} DEFAULT clkdev_default_write_4;
106
107#
108# Read single register
109#
110METHOD int read_4 {
111	device_t	dev;
112	bus_addr_t	addr;
113	uint32_t	*val;
114} DEFAULT clkdev_default_read_4;
115
116#
117# Modify single register
118#
119METHOD int modify_4 {
120	device_t	dev;
121	bus_addr_t	addr;
122	uint32_t	clear_mask;
123	uint32_t	set_mask;
124} DEFAULT clkdev_default_modify_4;
125
126#
127# Get exclusive access to underlying device
128#
129METHOD void device_lock {
130	device_t	dev;
131} DEFAULT clkdev_default_device_lock;
132
133#
134# Release exclusive access to underlying device
135#
136METHOD void device_unlock {
137	device_t	dev;
138} DEFAULT clkdev_default_device_unlock;
139