arch/mips/include/asm/mach-loongson/gpio.h

   1 /*
   2  * STLS2F GPIO Support
   3  *
   4  * Copyright (c) 2008  Richard Liu, STMicroelectronics <richard.liu@st.com>
   5  * Copyright (c) 2008-2010  Arnaud Patard <apatard@mandriva.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  */
  12
  13 #ifndef __STLS2F_GPIO_H
  14 #define __STLS2F_GPIO_H
  15
  16 #include <asm-generic/gpio.h>
  17
  18 extern void gpio_set_value(unsigned gpio, int value);
  19 extern int gpio_get_value(unsigned gpio);
  20 extern int gpio_cansleep(unsigned gpio);
  21
  22 /* The chip can do interrupt
  23  * but it has not been tested and doc not clear
  24  */
  25 static inline int gpio_to_irq(int gpio)
  26 {
  27         return -EINVAL;
  28 }
  29
  30 static inline int irq_to_gpio(int gpio)
  31 {
  32         return -EINVAL;
  33 }
  34
  35 #endif                          /* __STLS2F_GPIO_H */