diff options
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/gpio.h')
| -rw-r--r-- | include/asm-arm/arch-ixp4xx/gpio.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp4xx/gpio.h b/include/asm-arm/arch-ixp4xx/gpio.h new file mode 100644 index 000000000000..3a4c5b8ae9e1 --- /dev/null +++ b/include/asm-arm/arch-ixp4xx/gpio.h | |||
| @@ -0,0 +1,73 @@ | |||
| 1 | /* | ||
| 2 | * linux/include/asm-arm/arch-ixp4xx/gpio.h | ||
| 3 | * | ||
| 4 | * IXP4XX GPIO wrappers for arch-neutral GPIO calls | ||
| 5 | * | ||
| 6 | * Written by Milan Svoboda <msvoboda@ra.rockwell.com> | ||
| 7 | * Based on PXA implementation by Philipp Zabel <philipp.zabel@gmail.com> | ||
| 8 | * | ||
| 9 | * This program is free software; you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU General Public License as published by | ||
| 11 | * the Free Software Foundation; either version 2 of the License, or | ||
| 12 | * (at your option) any later version. | ||
| 13 | * | ||
| 14 | * This program is distributed in the hope that it will be useful, | ||
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 17 | * GNU General Public License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU General Public License | ||
| 20 | * along with this program; if not, write to the Free Software | ||
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 22 | * | ||
| 23 | */ | ||
| 24 | |||
| 25 | #ifndef __ASM_ARCH_IXP4XX_GPIO_H | ||
| 26 | #define __ASM_ARCH_IXP4XX_GPIO_H | ||
| 27 | |||
| 28 | #include <asm/hardware.h> | ||
| 29 | |||
| 30 | static inline int gpio_request(unsigned gpio, const char *label) | ||
| 31 | { | ||
| 32 | return 0; | ||
| 33 | } | ||
| 34 | |||
| 35 | static inline void gpio_free(unsigned gpio) | ||
| 36 | { | ||
| 37 | return; | ||
| 38 | } | ||
| 39 | |||
| 40 | static inline int gpio_direction_input(unsigned gpio) | ||
| 41 | { | ||
| 42 | gpio_line_config(gpio, IXP4XX_GPIO_IN); | ||
| 43 | return 0; | ||
| 44 | } | ||
| 45 | |||
| 46 | static inline int gpio_direction_output(unsigned gpio, int level) | ||
| 47 | { | ||
| 48 | gpio_line_set(gpio, level); | ||
| 49 | gpio_line_config(gpio, IXP4XX_GPIO_OUT); | ||
| 50 | return 0; | ||
| 51 | } | ||
| 52 | |||
| 53 | static inline int gpio_get_value(unsigned gpio) | ||
| 54 | { | ||
| 55 | int value; | ||
| 56 | |||
| 57 | gpio_line_get(gpio, &value); | ||
| 58 | |||
| 59 | return value; | ||
| 60 | } | ||
| 61 | |||
| 62 | static inline void gpio_set_value(unsigned gpio, int value) | ||
| 63 | { | ||
| 64 | gpio_line_set(gpio, value); | ||
| 65 | } | ||
| 66 | |||
| 67 | #include <asm-generic/gpio.h> /* cansleep wrappers */ | ||
| 68 | |||
| 69 | extern int gpio_to_irq(int gpio); | ||
| 70 | extern int irq_to_gpio(int gpio); | ||
| 71 | |||
| 72 | #endif | ||
| 73 | |||
