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authorPhilipp Zabel <philipp.zabel@gmail.com>2007-02-12 03:53:15 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-12 12:48:34 -0500
commit390414badebe45a2f556a04ece1fd99191aa6397 (patch)
tree8491b5e2f6ee05d2b2e04b7ae8e0e3ddd0c2e237
parent920fe7a8d0aba9782d1f924a02ece146acbf6686 (diff)
[PATCH] S3C2410 GPIO wrappers
Arch-neutral GPIO calls for S3C24xx. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/asm-arm/arch-s3c2410/gpio.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/include/asm-arm/arch-s3c2410/gpio.h b/include/asm-arm/arch-s3c2410/gpio.h
new file mode 100644
index 000000000000..67b8b9ab22e9
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/gpio.h
@@ -0,0 +1,65 @@
1/*
2 * linux/include/asm-arm/arch-pxa/gpio.h
3 *
4 * S3C2400 GPIO wrappers for arch-neutral GPIO calls
5 *
6 * Written by Philipp Zabel <philipp.zabel@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24#ifndef __ASM_ARCH_PXA_GPIO_H
25#define __ASM_ARCH_PXA_GPIO_H
26
27#include <asm/arch/pxa-regs.h>
28#include <asm/arch/irqs.h>
29#include <asm/arch/hardware.h>
30
31#include <asm/errno.h>
32
33static inline int gpio_request(unsigned gpio, const char *label)
34{
35 return 0;
36}
37
38static inline void gpio_free(unsigned gpio)
39{
40 return;
41}
42
43static inline int gpio_direction_input(unsigned gpio)
44{
45 s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_INPUT);
46 return 0;
47}
48
49static inline int gpio_direction_output(unsigned gpio)
50{
51 s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_OUTPUT);
52 return 0;
53}
54
55#define gpio_get_value(gpio) s3c2410_gpio_getpin(gpio)
56#define gpio_set_value(gpio,value) s3c2410_gpio_setpin(gpio, value)
57
58#include <asm-generic/gpio.h> /* cansleep wrappers */
59
60/* FIXME or maybe s3c2400_gpio_getirq() ... */
61#define gpio_to_irq(gpio) s3c2410_gpio_getirq(gpio)
62
63/* FIXME implement irq_to_gpio() */
64
65#endif