gpiovar.h

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /*      $OpenBSD: gpiovar.h,v 1.6 2011/10/03 20:24:51 matthieu Exp $    */
    2 
    3 /*
    4  * Copyright (c) 2004, 2006 Alexander Yurchenko <grange@openbsd.org>
    5  *
    6  * Permission to use, copy, modify, and distribute this software for any
    7  * purpose with or without fee is hereby granted, provided that the above
    8  * copyright notice and this permission notice appear in all copies.
    9  *
   10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   17  */
   18 
   19 #ifndef _DEV_GPIO_GPIOVAR_H_
   20 #define _DEV_GPIO_GPIOVAR_H_
   21 
   22 /* GPIO controller description */
   23 typedef struct gpio_chipset_tag {
   24         void    *gp_cookie;
   25 
   26         int     (*gp_pin_read)(void *, int);
   27         void    (*gp_pin_write)(void *, int, int);
   28         void    (*gp_pin_ctl)(void *, int, int);
   29 } *gpio_chipset_tag_t;
   30 
   31 /* GPIO pin description */
   32 typedef struct gpio_pin {
   33         int     pin_num;                /* number */
   34         int     pin_caps;               /* capabilities */
   35         int     pin_flags;              /* current configuration */
   36         int     pin_state;              /* current state */
   37         int     pin_mapped;             /* is mapped */
   38 } gpio_pin_t;
   39 
   40 /* Attach GPIO framework to the controller */
   41 struct gpiobus_attach_args {
   42         const char              *gba_name;      /* bus name */
   43         gpio_chipset_tag_t      gba_gc;         /* underlying controller */
   44         gpio_pin_t              *gba_pins;      /* pins array */
   45         int                     gba_npins;      /* total number of pins */
   46 };
   47 
   48 int gpiobus_print(void *, const char *);
   49 
   50 /* GPIO framework private methods */
   51 #define gpiobus_pin_read(gc, pin) \
   52     ((gc)->gp_pin_read((gc)->gp_cookie, (pin)))
   53 #define gpiobus_pin_write(gc, pin, value) \
   54     ((gc)->gp_pin_write((gc)->gp_cookie, (pin), (value)))
   55 #define gpiobus_pin_ctl(gc, pin, flags) \
   56     ((gc)->gp_pin_ctl((gc)->gp_cookie, (pin), (flags)))
   57 
   58 /* Attach devices connected to the GPIO pins */
   59 struct gpio_attach_args {
   60         void *                  ga_gpio;
   61         int                     ga_offset;
   62         u_int32_t               ga_mask;
   63         char                    *ga_dvname;
   64         u_int32_t               ga_flags;
   65 };
   66 
   67 /* GPIO pin map */
   68 struct gpio_pinmap {
   69         int *   pm_map;                 /* pin map */
   70         int     pm_size;                /* map size */
   71 };
   72 
   73 struct gpio_dev {
   74         struct device           *sc_dev;        /* the gpio device */
   75         LIST_ENTRY(gpio_dev)     sc_next;
   76 };
   77 
   78 struct gpio_name {
   79         char                    gp_name[GPIOPINMAXNAME];
   80         int                     gp_pin;
   81         LIST_ENTRY(gpio_name)   gp_next;
   82 };
   83 
   84 int     gpio_pin_map(void *, int, u_int32_t, struct gpio_pinmap *);
   85 void    gpio_pin_unmap(void *, struct gpio_pinmap *);
   86 int     gpio_pin_read(void *, struct gpio_pinmap *, int);
   87 void    gpio_pin_write(void *, struct gpio_pinmap *, int, int);
   88 void    gpio_pin_ctl(void *, struct gpio_pinmap *, int, int);
   89 int     gpio_pin_caps(void *, struct gpio_pinmap *, int);
   90 
   91 int     gpio_npins(u_int32_t);
   92 
   93 #endif  /* !_DEV_GPIO_GPIOVAR_H_ */

Cache object: 1b4f64fbf2e2fb822ef34275a442c78c

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/gpio/gpiovar.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/gpio/gpiovar.h