[deliverable/linux.git] / arch / arm / kernel / isa.c

/*
 *  linux/arch/arm/kernel/isa.c
 *
 *  Copyright (C) 1999 Phil Blundell
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 *
 *  ISA shared memory and I/O port support, and is required to support
 *  iopl, inb, outb and friends in userspace via glibc emulation.
 */
#include <linux/stddef.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/sysctl.h>
#include <linux/init.h>
#include <linux/io.h>

static unsigned int isa_membase, isa_portbase, isa_portshift;

static ctl_table ctl_isa_vars[4] = {
	{
		.ctl_name	= BUS_ISA_MEM_BASE,
		.procname	= "membase",
		.data		= &isa_membase, 
		.maxlen		= sizeof(isa_membase),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	}, {
		.ctl_name	= BUS_ISA_PORT_BASE,
		.procname	= "portbase",
		.data		= &isa_portbase, 
		.maxlen		= sizeof(isa_portbase),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	}, {
		.ctl_name	= BUS_ISA_PORT_SHIFT,
		.procname	= "portshift",
		.data		= &isa_portshift, 
		.maxlen		= sizeof(isa_portshift),
		.mode		= 0444,
		.proc_handler	= &proc_dointvec,
	}, {0}
};

static struct ctl_table_header *isa_sysctl_header;

static ctl_table ctl_isa[2] = {
	{
		.ctl_name	= CTL_BUS_ISA,
		.procname	= "isa",
		.mode		= 0555,
		.child		= ctl_isa_vars,
	}, {0}
};

static ctl_table ctl_bus[2] = {
	{
		.ctl_name	= CTL_BUS,
		.procname	= "bus",
		.mode		= 0555,
		.child		= ctl_isa,
	}, {0}
};

void __init
register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
{
	isa_membase = membase;
	isa_portbase = portbase;
	isa_portshift = portshift;
	isa_sysctl_header = register_sysctl_table(ctl_bus);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/kernel/isa.c
	3	*
	4	* Copyright (C) 1999 Phil Blundell
	5	*
1da177e4 LT	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.
7034b0e6 RK	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.
1da177e4	13	*/
1da177e4 LT	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>
87e0d6cc	19	#include <linux/io.h>
1da177e4 LT	20
	21	static unsigned int isa_membase, isa_portbase, isa_portshift;
	22
	23	static ctl_table ctl_isa_vars[4] = {
7034b0e6 RK	24	{
	25	.ctl_name = BUS_ISA_MEM_BASE,
	26	.procname = "membase",
	27	.data = &isa_membase,
	28	.maxlen = sizeof(isa_membase),
	29	.mode = 0444,
	30	.proc_handler = &proc_dointvec,
	31	}, {
	32	.ctl_name = BUS_ISA_PORT_BASE,
	33	.procname = "portbase",
	34	.data = &isa_portbase,
	35	.maxlen = sizeof(isa_portbase),
	36	.mode = 0444,
	37	.proc_handler = &proc_dointvec,
	38	}, {
	39	.ctl_name = BUS_ISA_PORT_SHIFT,
	40	.procname = "portshift",
	41	.data = &isa_portshift,
	42	.maxlen = sizeof(isa_portshift),
	43	.mode = 0444,
	44	.proc_handler = &proc_dointvec,
	45	}, {0}
1da177e4 LT	46	};
	47
	48	static struct ctl_table_header *isa_sysctl_header;
	49
7034b0e6 RK	50	static ctl_table ctl_isa[2] = {
	51	{
	52	.ctl_name = CTL_BUS_ISA,
	53	.procname = "isa",
	54	.mode = 0555,
	55	.child = ctl_isa_vars,
	56	}, {0}
	57	};
	58
	59	static ctl_table ctl_bus[2] = {
	60	{
	61	.ctl_name = CTL_BUS,
	62	.procname = "bus",
	63	.mode = 0555,
	64	.child = ctl_isa,
	65	}, {0}
	66	};
1da177e4 LT	67
	68	void __init
	69	register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
	70	{
	71	isa_membase = membase;
	72	isa_portbase = portbase;
	73	isa_portshift = portshift;
0b4d4147	74	isa_sysctl_header = register_sysctl_table(ctl_bus);
1da177e4	75	}