diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-07-03 06:24:25 -0400 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-07-03 11:51:23 -0400 |
commit | f348a2a2817e9d24b1edd4befc9659ec83501ca5 (patch) | |
tree | 99eb68575f9ca61c1de21502db2c41bbf2716609 /include/asm-arm | |
parent | ed9137f10377a59487cf43c76dd0d3bbf489d799 (diff) |
[ARM] S3C24XX: Add gpiolib support
Add support for gpilib on all S3C24XX platforms.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'include/asm-arm')
-rw-r--r-- | include/asm-arm/arch-s3c2410/gpio.h | 74 |
1 files changed, 12 insertions, 62 deletions
diff --git a/include/asm-arm/arch-s3c2410/gpio.h b/include/asm-arm/arch-s3c2410/gpio.h index 7583895fd336..18e10d2c35ea 100644 --- a/include/asm-arm/arch-s3c2410/gpio.h +++ b/include/asm-arm/arch-s3c2410/gpio.h | |||
@@ -1,68 +1,18 @@ | |||
1 | /* | 1 | /* linux/include/asm-arm/arch-s3c2410/gpio.h |
2 | * linux/include/asm-arm/arch-s3c2410/gpio.h | ||
3 | * | 2 | * |
4 | * S3C2410 GPIO wrappers for arch-neutral GPIO calls | 3 | * Copyright (c) 2008 Simtec Electronics |
4 | * http://armlinux.simtec.co.uk/ | ||
5 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | 6 | * |
6 | * Written by Philipp Zabel <philipp.zabel@gmail.com> | 7 | * S3C2410 - GPIO lib support |
7 | * | 8 | * |
8 | * This program is free software; you can redistribute it and/or modify | 9 | * 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 | * it under the terms of the GNU General Public License version 2 as |
10 | * the Free Software Foundation; either version 2 of the License, or | 11 | * published by the Free Software Foundation. |
11 | * (at your option) any later version. | 12 | */ |
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_S3C2410_GPIO_H | ||
25 | #define __ASM_ARCH_S3C2410_GPIO_H | ||
26 | |||
27 | #include <asm/irq.h> | ||
28 | #include <asm/hardware.h> | ||
29 | #include <asm/arch/regs-gpio.h> | ||
30 | |||
31 | static inline int gpio_request(unsigned gpio, const char *label) | ||
32 | { | ||
33 | return 0; | ||
34 | } | ||
35 | |||
36 | static inline void gpio_free(unsigned gpio) | ||
37 | { | ||
38 | return; | ||
39 | } | ||
40 | |||
41 | static inline int gpio_direction_input(unsigned gpio) | ||
42 | { | ||
43 | s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_INPUT); | ||
44 | return 0; | ||
45 | } | ||
46 | |||
47 | static inline int gpio_direction_output(unsigned gpio, int value) | ||
48 | { | ||
49 | s3c2410_gpio_cfgpin(gpio, S3C2410_GPIO_OUTPUT); | ||
50 | /* REVISIT can we write the value first, to avoid glitching? */ | ||
51 | s3c2410_gpio_setpin(gpio, value); | ||
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 | #ifdef CONFIG_CPU_S3C2400 | ||
61 | #define gpio_to_irq(gpio) s3c2400_gpio_getirq(gpio) | ||
62 | #else | ||
63 | #define gpio_to_irq(gpio) s3c2410_gpio_getirq(gpio) | ||
64 | #endif | ||
65 | 13 | ||
66 | /* FIXME implement irq_to_gpio() */ | 14 | #define gpio_get_value __gpio_get_value |
15 | #define gpio_set_value __gpio_set_value | ||
16 | #define gpio_cansleep __gpio_cansleep | ||
67 | 17 | ||
68 | #endif | 18 | #include <asm-generic/gpio.h> |