1/*
 2 *  linux/arch/arm/kernel/isa.c
 3 *
 4 *  Copyright (C) 1999 Phil Blundell
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 *
11 *  ISA shared memory and I/O port support, and is required to support
12 *  iopl, inb, outb and friends in userspace via glibc emulation.
13 */
14#include <linux/stddef.h>
15#include <linux/types.h>
16#include <linux/fs.h>
17#include <linux/sysctl.h>
18#include <linux/init.h>
19#include <linux/io.h>
20
21static unsigned int isa_membase, isa_portbase, isa_portshift;
22
23static struct ctl_table ctl_isa_vars[4] = {
24	{
25		.procname	= "membase",
26		.data		= &isa_membase, 
27		.maxlen		= sizeof(isa_membase),
28		.mode		= 0444,
29		.proc_handler	= proc_dointvec,
30	}, {
31		.procname	= "portbase",
32		.data		= &isa_portbase, 
33		.maxlen		= sizeof(isa_portbase),
34		.mode		= 0444,
35		.proc_handler	= proc_dointvec,
36	}, {
37		.procname	= "portshift",
38		.data		= &isa_portshift, 
39		.maxlen		= sizeof(isa_portshift),
40		.mode		= 0444,
41		.proc_handler	= proc_dointvec,
42	}, {}
43};
44
45static struct ctl_table_header *isa_sysctl_header;
46
47static struct ctl_table ctl_isa[2] = {
48	{
49		.procname	= "isa",
50		.mode		= 0555,
51		.child		= ctl_isa_vars,
52	}, {}
53};
54
55static struct ctl_table ctl_bus[2] = {
56	{
57		.procname	= "bus",
58		.mode		= 0555,
59		.child		= ctl_isa,
60	}, {}
61};
62
63void __init
64register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
65{
66	isa_membase = membase;
67	isa_portbase = portbase;
68	isa_portshift = portshift;
69	isa_sysctl_header = register_sysctl_table(ctl_bus);
70}

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 *  linux/arch/arm/kernel/isa.c
 4 *
 5 *  Copyright (C) 1999 Phil Blundell
 
 
 
 
 
 6 *
 7 *  ISA shared memory and I/O port support, and is required to support
 8 *  iopl, inb, outb and friends in userspace via glibc emulation.
 9 */
10#include <linux/stddef.h>
11#include <linux/types.h>
12#include <linux/fs.h>
13#include <linux/sysctl.h>
14#include <linux/init.h>
15#include <linux/io.h>
16
17static unsigned int isa_membase, isa_portbase, isa_portshift;
18
19static struct ctl_table ctl_isa_vars[4] = {
20	{
21		.procname	= "membase",
22		.data		= &isa_membase, 
23		.maxlen		= sizeof(isa_membase),
24		.mode		= 0444,
25		.proc_handler	= proc_dointvec,
26	}, {
27		.procname	= "portbase",
28		.data		= &isa_portbase, 
29		.maxlen		= sizeof(isa_portbase),
30		.mode		= 0444,
31		.proc_handler	= proc_dointvec,
32	}, {
33		.procname	= "portshift",
34		.data		= &isa_portshift, 
35		.maxlen		= sizeof(isa_portshift),
36		.mode		= 0444,
37		.proc_handler	= proc_dointvec,
38	}, {}
39};
40
41static struct ctl_table_header *isa_sysctl_header;
42
43static struct ctl_table ctl_isa[2] = {
44	{
45		.procname	= "isa",
46		.mode		= 0555,
47		.child		= ctl_isa_vars,
48	}, {}
49};
50
51static struct ctl_table ctl_bus[2] = {
52	{
53		.procname	= "bus",
54		.mode		= 0555,
55		.child		= ctl_isa,
56	}, {}
57};
58
59void __init
60register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
61{
62	isa_membase = membase;
63	isa_portbase = portbase;
64	isa_portshift = portshift;
65	isa_sysctl_header = register_sysctl_table(ctl_bus);
66}