target/linux/ifxmips/files/include/asm-mips/mach-ifxmips/gpio.h

   1 /*
   2  *   include/asm-mips/mach-ifxmips/gpio.h
   3  *
   4  *   This program is free software; you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation; either version 2 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program; if not, write to the Free Software
  16  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  17  *
  18  *   Copyright (C) 2007 John Crispin <blogic@openwrt.org>
  19  *
  20  */
  21
  22
  23 #ifndef _IFXMIPS_GPIO_H_
  24 #define _IFXMIPS_GPIO_H_
  25
  26 #include <asm/ifxmips/ifxmips.h>
  27
  28 static inline int gpio_direction_input(unsigned gpio) {
  29         ifxmips_port_set_dir_in(0, gpio);
  30 }
  31
  32 static inline int gpio_direction_output(unsigned gpio, int value) {
  33         ifxmips_port_set_dir_out(0, gpio);
  34 }
  35
  36 static inline int gpio_get_value(unsigned gpio) {
  37         ifxmips_port_get_input(0, gpio);
  38 }
  39
  40 static inline void gpio_set_value(unsigned gpio, int value) {
  41         ifxmips_port_set_output(0, gpio);
  42 }
  43
  44 static inline int gpio_request(unsigned gpio, const char *label) {
  45         return 0;
  46 }
  47
  48 static inline void gpio_free(unsigned gpio) {
  49 }
  50
  51 static inline int gpio_to_irq(unsigned gpio) {
  52         return 0;
  53 }
  54
  55 static inline int irq_to_gpio(unsigned irq) {
  56         return 0;
  57 }
  58
  59 static inline int gpio_cansleep(unsigned gpio) {
  60         return 0;
  61 }
  62
  63 static inline int gpio_get_value_cansleep(unsigned gpio) {
  64         might_sleep();
  65         return gpio_get_value(gpio);
  66 }
  67
  68 static inline void gpio_set_value_cansleep(unsigned gpio, int value) {
  69         might_sleep();
  70         gpio_set_value(gpio, value);
  71 }
  72
  73 #endif
  74