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yaml
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r: 47957
b: refs/heads/master
c: 8a898f1
h: refs/heads/master
i:
  47955: 3ea21ed
v: v3
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Philipp Zabel authored and Linus Torvalds committed Feb 12, 2007
1 parent 7289f81 commit 6fad086
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: a31c4eea2127ee52b5c7c1befada4664963ad030
refs/heads/master: 8a898f1c366c858f8dbcb667c1cfcc282b727795
72 changes: 72 additions & 0 deletions trunk/include/asm-arm/arch-pxa/gpio.h
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/*
* linux/include/asm-arm/arch-pxa/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 <asm/arch/pxa-regs.h>
#include <asm/arch/irqs.h>
#include <asm/arch/hardware.h>

#include <asm/errno.h>

static inline int gpio_request(unsigned gpio, const char *label)
{
return 0;
}

static inline void gpio_free(unsigned gpio)
{
return;
}

static inline int gpio_direction_input(unsigned gpio)
{
if (gpio > PXA_LAST_GPIO)
return -EINVAL;
pxa_gpio_mode(gpio | GPIO_IN);
}

static inline int gpio_direction_output(unsigned gpio)
{
if (gpio > PXA_LAST_GPIO)
return -EINVAL;
pxa_gpio_mode(gpio | GPIO_OUT);
}

/* REVISIT these macros are correct, but suffer code explosion
* for non-constant parameters. Provide out-line versions too.
*/
#define gpio_get_value(gpio) \
(GPLR(gpio) & GPIO_bit(gpio))

#define gpio_set_value(gpio,value) \
((value) ? (GPSR(gpio) = GPIO_bit(gpio)):(GPCR(gpio) = GPIO_bit(gpio)))

#include <asm-generic/gpio.h> /* cansleep wrappers */

#define gpio_to_irq(gpio) IRQ_GPIO(gpio)
#define irq_to_gpio(irq) IRQ_TO_GPIO(irq)


#endif

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