diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-05 16:14:15 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-07 09:55:48 +0100 |
commit | a09e64fbc0094e3073dbb09c3b4bfe4ab669244b (patch) | |
tree | 69689f467179891b498bd7423fcf61925173db31 /arch/arm/mach-pxa/include/mach/gpio.h | |
parent | a1b81a84fff05dbfef45b7012c26e1fee9973e5d (diff) |
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/gpio.h')
-rw-r--r-- | arch/arm/mach-pxa/include/mach/gpio.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h new file mode 100644 index 000000000000..2c538d8c362d --- /dev/null +++ b/arch/arm/mach-pxa/include/mach/gpio.h @@ -0,0 +1,65 @@ +/* + * arch/arm/mach-pxa/include/mach/gpio.h + * + * PXA 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_PXA_GPIO_H +#define __ASM_ARCH_PXA_GPIO_H + +#include <mach/pxa-regs.h> +#include <asm/irq.h> +#include <mach/hardware.h> + +#include <asm-generic/gpio.h> + + +/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85). + * Those cases currently cause holes in the GPIO number space. + */ +#define NR_BUILTIN_GPIO 128 + +static inline int gpio_get_value(unsigned gpio) +{ + if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) + return GPLR(gpio) & GPIO_bit(gpio); + else + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) { + if (value) + GPSR(gpio) = GPIO_bit(gpio); + else + GPCR(gpio) = GPIO_bit(gpio); + } else { + __gpio_set_value(gpio, value); + } +} + +#define gpio_cansleep __gpio_cansleep + +#define gpio_to_irq(gpio) IRQ_GPIO(gpio) +#define irq_to_gpio(irq) IRQ_TO_GPIO(irq) + + +#endif |