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 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Russell King | 7034b0e | 2006-08-28 12:44:03 +0100 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Ben Dooks | 87e0d6c | 2009-01-08 15:42:40 +0000 | [diff] [blame^] | 19 | #include <linux/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
| 21 | static unsigned int isa_membase, isa_portbase, isa_portshift; |
| 22 | |
| 23 | static ctl_table ctl_isa_vars[4] = { |
Russell King | 7034b0e | 2006-08-28 12:44:03 +0100 | [diff] [blame] | 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} |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | }; |
| 47 | |
| 48 | static struct ctl_table_header *isa_sysctl_header; |
| 49 | |
Russell King | 7034b0e | 2006-08-28 12:44:03 +0100 | [diff] [blame] | 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 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Eric W. Biederman | 0b4d414 | 2007-02-14 00:34:09 -0800 | [diff] [blame] | 74 | isa_sysctl_header = register_sysctl_table(ctl_bus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | } |