diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-sa1100/include/mach/gpio.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-sa1100/include/mach/gpio.h')
-rw-r--r-- | arch/arm/mach-sa1100/include/mach/gpio.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/gpio.h b/arch/arm/mach-sa1100/include/mach/gpio.h new file mode 100644 index 00000000000..582a0c92da5 --- /dev/null +++ b/arch/arm/mach-sa1100/include/mach/gpio.h @@ -0,0 +1,68 @@ +/* + * arch/arm/mach-sa1100/include/mach/gpio.h + * + * SA1100 GPIO wrappers for arch-neutral GPIO calls + * + * Written by Philipp Zabel <philipp.zabel@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __ASM_ARCH_SA1100_GPIO_H +#define __ASM_ARCH_SA1100_GPIO_H + +#include <mach/hardware.h> +#include <asm/irq.h> +#include <asm-generic/gpio.h> + +static inline int gpio_get_value(unsigned gpio) +{ + if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) + return GPLR & GPIO_GPIO(gpio); + else + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) + if (value) + GPSR = GPIO_GPIO(gpio); + else + GPCR = GPIO_GPIO(gpio); + else + __gpio_set_value(gpio, value); +} + +#define gpio_cansleep __gpio_cansleep + +static inline unsigned gpio_to_irq(unsigned gpio) +{ + if (gpio < 11) + return IRQ_GPIO0 + gpio; + else + return IRQ_GPIO11 - 11 + gpio; +} + +static inline unsigned irq_to_gpio(unsigned irq) +{ + if (irq < IRQ_GPIO11_27) + return irq - IRQ_GPIO0; + else + return irq - IRQ_GPIO11 + 11; +} + +#endif |