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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/lib/io-shark.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/arm/lib/io-shark.c')
-rw-r--r--arch/arm/lib/io-shark.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/lib/io-shark.c b/arch/arm/lib/io-shark.c
new file mode 100644
index 000000000000..108d4573e970
--- /dev/null
+++ b/arch/arm/lib/io-shark.c
@@ -0,0 +1,83 @@
1/*
2 * linux/arch/arm/lib/io-shark.c
3 *
4 * by Alexander Schulz
5 *
6 * derived from:
7 * linux/arch/arm/lib/io-ebsa.S
8 * Copyright (C) 1995, 1996 Russell King
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#include <linux/kernel.h>
15
16#include <asm/io.h>
17
18void print_warning(void)
19{
20 printk(KERN_WARNING "ins?/outs? not implemented on this architecture\n");
21}
22
23void insl(unsigned int port, void *to, int len)
24{
25 print_warning();
26}
27
28void insb(unsigned int port, void *to, int len)
29{
30 print_warning();
31}
32
33void outsl(unsigned int port, const void *from, int len)
34{
35 print_warning();
36}
37
38void outsb(unsigned int port, const void *from, int len)
39{
40 print_warning();
41}
42
43/* these should be in assembler again */
44
45/*
46 * Purpose: read a block of data from a hardware register to memory.
47 * Proto : insw(int from_port, void *to, int len_in_words);
48 * Proto : inswb(int from_port, void *to, int len_in_bytes);
49 * Notes : increment to
50 */
51
52void insw(unsigned int port, void *to, int len)
53{
54 int i;
55
56 for (i = 0; i < len; i++)
57 ((unsigned short *) to)[i] = inw(port);
58}
59
60void inswb(unsigned int port, void *to, int len)
61{
62 insw(port, to, len >> 2);
63}
64
65/*
66 * Purpose: write a block of data from memory to a hardware register.
67 * Proto : outsw(int to_reg, void *from, int len_in_words);
68 * Proto : outswb(int to_reg, void *from, int len_in_bytes);
69 * Notes : increments from
70 */
71
72void outsw(unsigned int port, const void *from, int len)
73{
74 int i;
75
76 for (i = 0; i < len; i++)
77 outw(((unsigned short *) from)[i], port);
78}
79
80void outswb(unsigned int port, const void *from, int len)
81{
82 outsw(port, from, len >> 2);
83}