LXR linux/arch/mips/include/asm/pmc-sierra/msp71xx/gpio.h

   1/*
   2 * include/asm-mips/pmc-sierra/msp71xx/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 version 2 as
   6 * published by the Free Software Foundation.
   7 *
   8 * @author Patrick Glass <patrickglass@gmail.com>
   9 */
  10
  11#ifndef __PMC_MSP71XX_GPIO_H
  12#define __PMC_MSP71XX_GPIO_H
  13
  14/* Max number of gpio's is 28 on chip plus 3 banks of I2C IO Expanders */
  15#define ARCH_NR_GPIOS (28 + (3 * 8))
  16
  17/* new generic GPIO API - see Documentation/gpio.txt */
  18#include <asm-generic/gpio.h>
  19
  20#define gpio_get_value  __gpio_get_value
  21#define gpio_set_value  __gpio_set_value
  22#define gpio_cansleep   __gpio_cansleep
  23
  24/* Setup calls for the gpio and gpio extended */
  25extern void msp71xx_init_gpio(void);
  26extern void msp71xx_init_gpio_extended(void);
  27extern int msp71xx_set_output_drive(unsigned gpio, int value);
  28
  29/* Custom output drive functionss */
  30static inline int gpio_set_output_drive(unsigned gpio, int value)
  31{
  32        return msp71xx_set_output_drive(gpio, value);
  33}
  34
  35/* IRQ's are not supported for gpio lines */
  36static inline int gpio_to_irq(unsigned gpio)
  37{
  38        return -EINVAL;
  39}
  40
  41static inline int irq_to_gpio(unsigned irq)
  42{
  43        return -EINVAL;
  44}
  45
  46#endif /* __PMC_MSP71XX_GPIO_H */
  47