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 /*
  15  * GENERIC_GPIO primitives.
  16  */
  17 int gpio_request(unsigned pin, const char *label);
  18 void gpio_free(unsigned pin);
  19 int gpio_direction_input(unsigned pin);
  20 int gpio_direction_output(unsigned pin, int value);
  21 int gpio_get_value(unsigned pin);
  22 void gpio_set_value(unsigned pin, int value);
  23
  24 /*
  25  * Orion-specific GPIO API extensions.
  26  */
  27 void orion_gpio_set_unused(unsigned pin);
  28 void orion_gpio_set_valid(unsigned pin, int valid);
  29 void orion_gpio_set_blink(unsigned pin, int blink);
  30
  31 /*
  32  * GPIO interrupt handling.
  33  */
  34 extern struct irq_chip orion_gpio_irq_chip;
  35 void orion_gpio_irq_handler(int irqoff);
  36
  37
  38 #endif