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}

 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}