gpio.h

#ifndef _COBALT_RTDM_GPIO_H
#define _COBALT_RTDM_GPIO_H

#include <linux/list.h>
#include <rtdm/driver.h>
#include <rtdm/uapi/gpio.h>

struct class;
struct device_node;
struct gpio_desc;

struct rtdm_gpio_pin {
        struct rtdm_device dev;
        struct list_head next;
        rtdm_irq_t irqh;
        rtdm_event_t event;
        char *name;
        struct gpio_desc *desc;
};

struct rtdm_gpio_chip {
        struct gpio_chip *gc;
        struct rtdm_driver driver;
        struct class *devclass;
        struct list_head next;
        rtdm_lock_t lock;
        struct rtdm_gpio_pin pins[0];
};

int rtdm_gpiochip_add(struct rtdm_gpio_chip *rgc,
                      struct gpio_chip *gc,
                      int gpio_subclass);

struct rtdm_gpio_chip *
rtdm_gpiochip_alloc(struct gpio_chip *gc,
                    int gpio_subclass);

void rtdm_gpiochip_remove(struct rtdm_gpio_chip *rgc);

int rtdm_gpiochip_add_by_name(struct rtdm_gpio_chip *rgc,
                              const char *label, int gpio_subclass);

int rtdm_gpiochip_post_event(struct rtdm_gpio_chip *rgc,
                             unsigned int offset);

#ifdef CONFIG_OF

int rtdm_gpiochip_scan_of(struct device_node *from,
                          const char *compat, int type);

int rtdm_gpiochip_scan_array_of(struct device_node *from,
                                const char *compat[],
                                int nentries, int type);

void rtdm_gpiochip_remove_of(int type);

#endif

#endif /* !_COBALT_RTDM_GPIO_H */