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# 27 28#include <sys/bus.h> 29#include <sys/gpio.h> 30 31INTERFACE gpiobus; 32 33# 34# Dedicate the gpio bus control for a child 35# 36METHOD int acquire_bus { 37 device_t busdev; 38 device_t dev; 39 int how; 40}; 41 42# 43# Release the bus 44# 45METHOD void release_bus { 46 device_t busdev; 47 device_t dev; 48}; 49 50# 51# Set value of pin specified by pin_num 52# 53METHOD int pin_set { 54 device_t dev; 55 device_t child; 56 uint32_t pin_num; 57 uint32_t pin_value; 58}; 59 60# 61# Get value of pin specified by pin_num 62# 63METHOD int pin_get { 64 device_t dev; 65 device_t child; 66 uint32_t pin_num; 67 uint32_t *pin_value; 68}; 69 70# 71# Toggle value of pin specified by pin_num 72# 73METHOD int pin_toggle { 74 device_t dev; 75 device_t child; 76 uint32_t pin_num; 77}; 78 79# 80# Get pin capabilities 81# 82METHOD int pin_getcaps { 83 device_t dev; 84 device_t child; 85 uint32_t pin_num; 86 uint32_t *caps; 87}; 88 89# 90# Get pin flags 91# 92METHOD int pin_getflags { 93 device_t dev; 94 device_t child; 95 uint32_t pin_num; 96 uint32_t *flags; 97}; 98 99# 100# Set current configuration and capabilities 101# 102METHOD int pin_setflags { 103 device_t dev; 104 device_t child; 105 uint32_t pin_num; 106 uint32_t flags; 107}; 108 109# 110# Get the pin name 111# 112METHOD int pin_getname { 113 device_t dev; 114 uint32_t pin_num; 115 char *name; 116}; 117 118# 119# Set the pin name 120# 121METHOD int pin_setname { 122 device_t dev; 123 uint32_t pin_num; 124 const char *name; 125}; 126