gpiobus_if.m

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    1 #-
    2 # Copyright (c) 2009 Oleksandr Tymoshenko <gonzo@freebsd.org>
    3 # All rights reserved.
    4 #
    5 # Redistribution and use in source and binary forms, with or without
    6 # modification, are permitted provided that the following conditions
    7 # are met:
    8 # 1. Redistributions of source code must retain the above copyright
    9 #    notice, this list of conditions and the following disclaimer.
   10 # 2. Redistributions in binary form must reproduce the above copyright
   11 #    notice, this list of conditions and the following disclaimer in the
   12 #    documentation and/or other materials provided with the distribution.
   13 #
   14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24 # SUCH DAMAGE.
   25 #
   26 # $FreeBSD$
   27 #
   28 
   29 #include <sys/bus.h>
   30 #include <sys/gpio.h>
   31 
   32 INTERFACE gpiobus;
   33 
   34 #
   35 # Dedicate the gpio bus control for a child
   36 #
   37 METHOD int acquire_bus {
   38         device_t busdev;
   39         device_t dev;
   40         int how;
   41 };
   42 
   43 #
   44 # Release the bus
   45 #
   46 METHOD void release_bus {
   47         device_t busdev;
   48         device_t dev;
   49 };
   50 
   51 #
   52 # Set value of pin specified by pin_num 
   53 #
   54 METHOD int pin_set {
   55         device_t dev;
   56         device_t child;
   57         uint32_t pin_num;
   58         uint32_t pin_value;
   59 };
   60 
   61 #
   62 # Get value of pin specified by pin_num 
   63 #
   64 METHOD int pin_get {
   65         device_t dev;
   66         device_t child;
   67         uint32_t pin_num;
   68         uint32_t *pin_value;
   69 };
   70 
   71 #
   72 # Toggle value of pin specified by pin_num 
   73 #
   74 METHOD int pin_toggle {
   75         device_t dev;
   76         device_t child;
   77         uint32_t pin_num;
   78 };
   79 
   80 #
   81 # Get pin capabilities
   82 #
   83 METHOD int pin_getcaps {
   84         device_t dev;
   85         device_t child;
   86         uint32_t pin_num;
   87         uint32_t *caps;
   88 };
   89 
   90 #
   91 # Get pin flags
   92 #
   93 METHOD int pin_getflags {
   94         device_t dev;
   95         device_t child;
   96         uint32_t pin_num;
   97         uint32_t *flags;
   98 };
   99 
  100 #
  101 # Set current configuration and capabilities
  102 #
  103 METHOD int pin_setflags {
  104         device_t dev;
  105         device_t child;
  106         uint32_t pin_num;
  107         uint32_t flags;
  108 };
  109 
  110 #
  111 # Get the pin name
  112 #
  113 METHOD int pin_getname {
  114         device_t dev;
  115         uint32_t pin_num;
  116         char *name;
  117 };
  118 
  119 #
  120 # Set the pin name
  121 #
  122 METHOD int pin_setname {
  123         device_t dev;
  124         uint32_t pin_num;
  125         const char *name;
  126 };

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FreeBSD/Linux Kernel Cross Reference sys/dev/gpio/gpiobus_if.m

FreeBSD/Linux Kernel Cross Reference
sys/dev/gpio/gpiobus_if.m