isa.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- /*
- * linux/arch/arm/kernel/isa.c
- *
- * Copyright (C) 1999 Phil Blundell
- *
- * ISA shared memory and I/O port support
- */
- /*
- * 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.
- */
- /*
- * Nothing about this is actually ARM specific. One day we could move
- * it into kernel/resource.c or some place like that.
- */
- #include <linux/stddef.h>
- #include <linux/types.h>
- #include <linux/fs.h>
- #include <linux/sysctl.h>
- #include <linux/init.h>
- static unsigned int isa_membase, isa_portbase, isa_portshift;
- static ctl_table ctl_isa_vars[4] = {
- {BUS_ISA_MEM_BASE, "membase", &isa_membase,
- sizeof(isa_membase), 0444, NULL, &proc_dointvec},
- {BUS_ISA_PORT_BASE, "portbase", &isa_portbase,
- sizeof(isa_portbase), 0444, NULL, &proc_dointvec},
- {BUS_ISA_PORT_SHIFT, "portshift", &isa_portshift,
- sizeof(isa_portshift), 0444, NULL, &proc_dointvec},
- {0}
- };
- static struct ctl_table_header *isa_sysctl_header;
- static ctl_table ctl_isa[2] = {{BUS_ISA, "isa", NULL, 0, 0555, ctl_isa_vars},
- {0}};
- static ctl_table ctl_bus[2] = {{CTL_BUS, "bus", NULL, 0, 0555, 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, 0);
- }