mxc_gpio.h 1.5 KB

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  1. /*
  2. *
  3. * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (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,
  21. * MA 02111-1307 USA
  22. */
  23. #ifndef __MXC_GPIO_H
  24. #define __MXC_GPIO_H
  25. enum mxc_gpio_direction {
  26. MXC_GPIO_DIRECTION_IN,
  27. MXC_GPIO_DIRECTION_OUT,
  28. };
  29. #ifdef CONFIG_MXC_GPIO
  30. extern int mxc_gpio_direction(unsigned int gpio,
  31. enum mxc_gpio_direction direction);
  32. extern void mxc_gpio_set(unsigned int gpio, unsigned int value);
  33. extern int mxc_gpio_get(unsigned int gpio);
  34. #else
  35. static inline int mxc_gpio_direction(unsigned int gpio,
  36. enum mxc_gpio_direction direction)
  37. {
  38. return 1;
  39. }
  40. static inline int mxc_gpio_get(unsigned int gpio)
  41. {
  42. return 1;
  43. }
  44. static inline void mxc_gpio_set(unsigned int gpio, unsigned int value)
  45. {
  46. }
  47. #endif
  48. #endif