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 32INTERFACE gpiobus; 33 34# 35# Lock the gpio bus 36# 37METHOD void lock_bus { 38 device_t busdev; 39}; 40 41# 42# Unlock the gpio bus 43# 44METHOD void unlock_bus { 45 device_t busdev; 46}; 47 48# 49# Dedicate the gpio bus control for a child 50# 51METHOD void acquire_bus { 52 device_t busdev; 53 device_t dev; 54}; 55 56# 57# Release the bus 58# 59METHOD void release_bus { 60 device_t busdev; 61 device_t dev; 62}; 63 64# 65# Set value of pin specifed by pin_num 66# 67METHOD 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# 77METHOD 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# 87METHOD int pin_toggle { 88 device_t dev; 89 device_t child; 90 uint32_t pin_num; 91}; 92 93# 94# Get pin capabilities 95# 96METHOD 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# 106METHOD 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# 116METHOD int pin_setflags { 117 device_t dev; 118 device_t child; 119 uint32_t pin_num; 120 uint32_t flags; 121}; 122