mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 10:44:14 +08:00
45528e3817
This adds gpiolib support for the SA-1100 arch: - Move all GPIO API functions from generic.c into gpio.c - Convert all gpio functions into gpiolib callbacks. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
|
|
* linux/include/asm-arm/arch-sa1100/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 <asm/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
|