arch/arm/mach-sa1100/include/mach/gpio.h

   1 /*
   2  * arch/arm/mach-sa1100/include/mach/gpio.h
   3  *
   4  * SA1100 GPIO wrappers for arch-neutral GPIO calls
   5  *
   6  * Written by Philipp Zabel <philipp.zabel@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21  *
  22  */
  23
  24 #ifndef __ASM_ARCH_SA1100_GPIO_H
  25 #define __ASM_ARCH_SA1100_GPIO_H
  26
  27 #include <mach/hardware.h>
  28 #include <asm/irq.h>
  29 #include <asm-generic/gpio.h>
  30
  31 #define __ARM_GPIOLIB_COMPLEX
  32
  33 static inline int gpio_get_value(unsigned gpio)
  34 {
  35         if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
  36                 return GPLR & GPIO_GPIO(gpio);
  37         else
  38                 return __gpio_get_value(gpio);
  39 }
  40
  41 static inline void gpio_set_value(unsigned gpio, int value)
  42 {
  43         if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
  44                 if (value)
  45                         GPSR = GPIO_GPIO(gpio);
  46                 else
  47                         GPCR = GPIO_GPIO(gpio);
  48         else
  49                 __gpio_set_value(gpio, value);
  50 }
  51
  52 #define gpio_cansleep   __gpio_cansleep
  53
  54 #define gpio_to_irq(gpio)       ((gpio < 11) ? (IRQ_GPIO0 + gpio) : \
  55                                         (IRQ_GPIO11 - 11 + gpio))
  56
  57 #endif