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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:08:03 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 22:08:03 -0400
commitdc113c1f1d4b47af1b1ca701c5a39e24d296c2ac (patch)
tree0bb5ce21bcd41a9443708567edbdca80d9a72397 /arch/m68k/emu/natfeat.c
parent63a93699c6a58795b854ff573542a08367684dae (diff)
parent059718d572e8ad388313b863aff717623bb2552f (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k/block: amiflop - Remove superfluous amiga_chip_alloc() cast m68k/atari: ARAnyM - Add support for network access m68k/atari: ARAnyM - Add support for console access m68k/atari: ARAnyM - Add support for block access m68k/atari: Initial ARAnyM support m68k: Kconfig - Remove unneeded "default n" m68k: Makefiles - Change to new flags variables m68k/amiga: Reclaim Chip RAM for PPC exception handlers m68k: Allow all kernel traps to be handled via exception fixups m68k: Use base_trap_init() to initialize vectors m68k: Add helper function handle_kernel_fault()
Diffstat (limited to 'arch/m68k/emu/natfeat.c')
-rw-r--r--arch/m68k/emu/natfeat.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c
new file mode 100644
index 000000000000..2291a7d69d49
--- /dev/null
+++ b/arch/m68k/emu/natfeat.c
@@ -0,0 +1,78 @@
1/*
2 * natfeat.c - ARAnyM hardware support via Native Features (natfeats)
3 *
4 * Copyright (c) 2005 Petr Stehlik of ARAnyM dev team
5 *
6 * Reworked for Linux by Roman Zippel <zippel@linux-m68k.org>
7 *
8 * This software may be used and distributed according to the terms of
9 * the GNU General Public License (GPL), incorporated herein by reference.
10 */
11
12#include <linux/types.h>
13#include <linux/console.h>
14#include <linux/string.h>
15#include <linux/kernel.h>
16#include <linux/module.h>
17#include <linux/io.h>
18#include <asm/machdep.h>
19#include <asm/natfeat.h>
20
21asm("\n"
22" .global nf_get_id,nf_call\n"
23"nf_get_id:\n"
24" .short 0x7300\n"
25" rts\n"
26"nf_call:\n"
27" .short 0x7301\n"
28" rts\n"
29"1: moveq.l #0,%d0\n"
30" rts\n"
31" .section __ex_table,\"a\"\n"
32" .long nf_get_id,1b\n"
33" .long nf_call,1b\n"
34" .previous");
35EXPORT_SYMBOL_GPL(nf_get_id);
36EXPORT_SYMBOL_GPL(nf_call);
37
38void nfprint(const char *fmt, ...)
39{
40 static char buf[256];
41 va_list ap;
42 int n;
43
44 va_start(ap, fmt);
45 n = vsnprintf(buf, 256, fmt, ap);
46 nf_call(nf_get_id("NF_STDERR"), buf);
47 va_end(ap);
48}
49
50static void nf_poweroff(void)
51{
52 long id = nf_get_id("NF_SHUTDOWN");
53
54 if (id)
55 nf_call(id);
56}
57
58void nf_init(void)
59{
60 unsigned long id, version;
61 char buf[256];
62
63 id = nf_get_id("NF_VERSION");
64 if (!id)
65 return;
66 version = nf_call(id);
67
68 id = nf_get_id("NF_NAME");
69 if (!id)
70 return;
71 nf_call(id, buf, 256);
72 buf[255] = 0;
73
74 pr_info("NatFeats found (%s, %lu.%lu)\n", buf, version >> 16,
75 version & 0xffff);
76
77 mach_power_off = nf_poweroff;
78}