| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |