release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/plat-orion/include/plat/gpio.h

   1 /*
   2  * arch/arm/plat-orion/include/plat/gpio.h
   3  *
   4  * Marvell Orion SoC GPIO handling.
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #ifndef __PLAT_GPIO_H
  12 #define __PLAT_GPIO_H
  13
  14 #include <linux/init.h>
  15
  16 /*
  17  * GENERIC_GPIO primitives.
  18  */
  19 #define gpio_get_value  __gpio_get_value
  20 #define gpio_set_value  __gpio_set_value
  21 #define gpio_cansleep   __gpio_cansleep
  22
  23 /*
  24  * Orion-specific GPIO API extensions.
  25  */
  26 void orion_gpio_set_unused(unsigned pin);
  27 void orion_gpio_set_blink(unsigned pin, int blink);
  28
  29 #define GPIO_INPUT_OK           (1 << 0)
  30 #define GPIO_OUTPUT_OK          (1 << 1)
  31 void orion_gpio_set_valid(unsigned pin, int mode);
  32
  33 /* Initialize gpiolib. */
  34 void __init orion_gpio_init(void);
  35
  36 /*
  37  * GPIO interrupt handling.
  38  */
  39 extern struct irq_chip orion_gpio_irq_chip;
  40 void orion_gpio_irq_handler(int irqoff);
  41
  42
  43 #endif