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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/kernel/isa.c | |
3 | * | |
4 | * Copyright (C) 1999 Phil Blundell | |
5 | * | |
6 | * ISA shared memory and I/O port support | |
7 | */ | |
8 | ||
9 | /* | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License | |
12 | * as published by the Free Software Foundation; either version | |
13 | * 2 of the License, or (at your option) any later version. | |
14 | */ | |
15 | ||
16 | /* | |
17 | * Nothing about this is actually ARM specific. One day we could move | |
18 | * it into kernel/resource.c or some place like that. | |
19 | */ | |
20 | ||
21 | #include <linux/stddef.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/fs.h> | |
24 | #include <linux/sysctl.h> | |
25 | #include <linux/init.h> | |
26 | ||
27 | static unsigned int isa_membase, isa_portbase, isa_portshift; | |
28 | ||
29 | static ctl_table ctl_isa_vars[4] = { | |
30 | {BUS_ISA_MEM_BASE, "membase", &isa_membase, | |
31 | sizeof(isa_membase), 0444, NULL, &proc_dointvec}, | |
32 | {BUS_ISA_PORT_BASE, "portbase", &isa_portbase, | |
33 | sizeof(isa_portbase), 0444, NULL, &proc_dointvec}, | |
34 | {BUS_ISA_PORT_SHIFT, "portshift", &isa_portshift, | |
35 | sizeof(isa_portshift), 0444, NULL, &proc_dointvec}, | |
36 | {0} | |
37 | }; | |
38 | ||
39 | static struct ctl_table_header *isa_sysctl_header; | |
40 | ||
41 | static ctl_table ctl_isa[2] = {{CTL_BUS_ISA, "isa", NULL, 0, 0555, ctl_isa_vars}, | |
42 | {0}}; | |
43 | static ctl_table ctl_bus[2] = {{CTL_BUS, "bus", NULL, 0, 0555, ctl_isa}, | |
44 | {0}}; | |
45 | ||
46 | void __init | |
47 | register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift) | |
48 | { | |
49 | isa_membase = membase; | |
50 | isa_portbase = portbase; | |
51 | isa_portshift = portshift; | |
52 | isa_sysctl_header = register_sysctl_table(ctl_bus, 0); | |
53 | } |