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/10.2/sys/dev/gpio/gpiobus_if.m 278783 2015-02-14 20:50:38Z loos $ 27# 28 29#include <sys/bus.h> 30#include <sys/gpio.h> 31 32INTERFACE gpiobus; 33 34# 35# Dedicate the gpio bus control for a child 36# 37METHOD int acquire_bus { 38 device_t busdev; 39 device_t dev; 40 int how; 41}; 42 43# 44# Release the bus 45# 46METHOD void release_bus { 47 device_t busdev; 48 device_t dev; 49}; 50 51# 52# Set value of pin specifed by pin_num 53# 54METHOD 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 specifed by pin_num 63# 64METHOD 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 specifed by pin_num 73# 74METHOD int pin_toggle { 75 device_t dev; 76 device_t child; 77 uint32_t pin_num; 78}; 79 80# 81# Get pin capabilities 82# 83METHOD 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# 93METHOD 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# 103METHOD int pin_setflags { 104 device_t dev; 105 device_t child; 106 uint32_t pin_num; 107 uint32_t flags; 108}; 109