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| 3 | * linux/arch/arm/kernel/isa.c
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| 4 | *
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| 5 | * Copyright (C) 1999 Phil Blundell
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| 6 | *
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| 7 | * ISA shared memory and I/O port support, and is required to support
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| 8 | * iopl, inb, outb and friends in userspace via glibc emulation.
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| 9 |
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| 10 | #include <linux/stddef.h>
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| 11 | #include <linux/types.h>
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| 12 | #include <linux/fs.h>
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| 13 | #include <linux/sysctl.h>
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| 14 | #include <linux/init.h>
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| 15 | #include <linux/io.h>
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| 16 |
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| 17 | static unsigned int isa_membase, isa_portbase, isa_portshift;
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| 18 |
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| 19 | static const struct ctl_table ctl_isa_vars[] = {
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| 20 | {
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| 21 | .procname = "membase",
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| 22 | .data = &isa_membase,
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| 23 | .maxlen = sizeof(isa_membase),
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| 24 | .mode = 0444,
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| 25 | .proc_handler = proc_dointvec,
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| 26 | }, {
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| 27 | .procname = "portbase",
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| 28 | .data = &isa_portbase,
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| 29 | .maxlen = sizeof(isa_portbase),
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| 30 | .mode = 0444,
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| 31 | .proc_handler = proc_dointvec,
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| 32 | }, {
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| 33 | .procname = "portshift",
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| 34 | .data = &isa_portshift,
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| 35 | .maxlen = sizeof(isa_portshift),
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| 36 | .mode = 0444,
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| 37 | .proc_handler = proc_dointvec,
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| 38 | },
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| 39 | };
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| 40 |
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| 41 | static struct ctl_table_header *isa_sysctl_header;
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| 42 |
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| 43 | void __init
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| 44 | register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
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| 45 | {
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| 46 | isa_membase = membase;
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| 47 | isa_portbase = portbase;
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| 48 | isa_portshift = portshift;
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| 49 | isa_sysctl_header = register_sysctl("bus/isa", ctl_isa_vars);
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| 50 | }
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