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: releng/9.0/sys/dev/gpio/gpiobus_if.m 213237 2010-09-28 03:24:53Z gonzo $
   27 #
   28 
   29 #include <sys/bus.h>
   30 #include <sys/gpio.h>
   31 
   32 INTERFACE gpiobus;
   33 
   34 #
   35 # Lock the gpio bus
   36 #
   37 METHOD void lock_bus {
   38         device_t busdev;
   39 };
   40 
   41 #
   42 # Unlock the gpio bus
   43 #
   44 METHOD void unlock_bus {
   45         device_t busdev;
   46 };
   47 
   48 #
   49 # Dedicate the gpio bus control for a child
   50 #
   51 METHOD void acquire_bus {
   52         device_t busdev;
   53         device_t dev;
   54 };
   55 
   56 #
   57 # Release the bus
   58 #
   59 METHOD void release_bus {
   60         device_t busdev;
   61         device_t dev;
   62 };
   63 
   64 #
   65 # Set value of pin specifed by pin_num 
   66 #
   67 METHOD int pin_set {
   68         device_t dev;
   69         device_t child;
   70         uint32_t pin_num;
   71         uint32_t pin_value;
   72 };
   73 
   74 #
   75 # Get value of pin specifed by pin_num 
   76 #
   77 METHOD int pin_get {
   78         device_t dev;
   79         device_t child;
   80         uint32_t pin_num;
   81         uint32_t *pin_value;
   82 };
   83 
   84 #
   85 # Toggle value of pin specifed by pin_num 
   86 #
   87 METHOD int pin_toggle {
   88         device_t dev;
   89         device_t child;
   90         uint32_t pin_num;
   91 };
   92 
   93 #
   94 # Get pin capabilities
   95 #
   96 METHOD int pin_getcaps {
   97         device_t dev;
   98         device_t child;
   99         uint32_t pin_num;
  100         uint32_t *caps;
  101 };
  102 
  103 #
  104 # Get pin flags
  105 #
  106 METHOD int pin_getflags {
  107         device_t dev;
  108         device_t child;
  109         uint32_t pin_num;
  110         uint32_t *flags;
  111 };
  112 
  113 #
  114 # Set current configuration and capabilities
  115 #
  116 METHOD int pin_setflags {
  117         device_t dev;
  118         device_t child;
  119         uint32_t pin_num;
  120         uint32_t flags;
  121 };

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

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sys/dev/gpio/gpiobus_if.m