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authorDave Kleikamp <shaggy@austin.ibm.com>2005-07-19 14:46:53 -0400
committerDave Kleikamp <shaggy@austin.ibm.com>2005-07-19 14:46:53 -0400
commit21d1ee8b375bcd180f1d6b8ccbb8d8f938596310 (patch)
tree2e82b65c16a4aaa88eeb7dd9f47f2d1c418e77d0 /arch/arm/lib
parent3d9b1cdd2455017c6aa25bc2442092b81438981f (diff)
parentf60f700876cd51de9de69f3a3c865d95e287a24d (diff)
Merge with /home/shaggy/git/linus-clean/
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'arch/arm/lib')
-rw-r--r--arch/arm/lib/bitops.h31
-rw-r--r--arch/arm/lib/io-shark.c70
2 files changed, 31 insertions, 70 deletions
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index 4a83ab6cd565..6976e60e47cb 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -1,3 +1,33 @@
1#if __LINUX_ARM_ARCH__ >= 6
2 .macro bitop, instr
3 mov r2, #1
4 and r3, r0, #7 @ Get bit offset
5 add r1, r1, r0, lsr #3 @ Get byte offset
6 mov r3, r2, lsl r3
71: ldrexb r2, [r1]
8 \instr r2, r2, r3
9 strexb r0, r2, [r1]
10 cmpne r0, #0
11 bne 1b
12 mov pc, lr
13 .endm
14
15 .macro testop, instr, store
16 and r3, r0, #7 @ Get bit offset
17 mov r2, #1
18 add r1, r1, r0, lsr #3 @ Get byte offset
19 mov r3, r2, lsl r3 @ create mask
201: ldrexb r2, [r1]
21 ands r0, r2, r3 @ save old value of bit
22 \instr ip, r2, r3 @ toggle bit
23 strexb r2, ip, [r1]
24 cmp r2, #0
25 bne 1b
26 cmp r0, #0
27 movne r0, #1
282: mov pc, lr
29 .endm
30#else
1 .macro bitop, instr 31 .macro bitop, instr
2 and r2, r0, #7 32 and r2, r0, #7
3 mov r3, #1 33 mov r3, #1
@@ -31,3 +61,4 @@
31 moveq r0, #0 61 moveq r0, #0
32 mov pc, lr 62 mov pc, lr
33 .endm 63 .endm
64#endif
diff --git a/arch/arm/lib/io-shark.c b/arch/arm/lib/io-shark.c
index 108d4573e970..824253948f51 100644
--- a/arch/arm/lib/io-shark.c
+++ b/arch/arm/lib/io-shark.c
@@ -11,73 +11,3 @@
11 * it under the terms of the GNU General Public License version 2 as 11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation. 12 * published by the Free Software Foundation.
13 */ 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}