1#- 2# Copyright (c) 2014 Ian Lepore 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/types.h> 30#include <sys/bus.h> 31#include <dev/ofw/openfirm.h> 32 33# 34# This is the interface that fdt_pinctrl drivers provide to other drivers. 35# 36 37INTERFACE fdt_pinctrl; 38 39CODE { 40 static int 41 fdt_pinctrl_default_is_gpio(device_t pinctrl, device_t gpio, bool *is_gpio) 42 { 43 44 return (EOPNOTSUPP); 45 } 46 47 static int 48 fdt_pinctrl_default_set_flags(device_t pinctrl, device_t gpio, uint32_t pin, 49 uint32_t flags) 50 { 51 52 return (EOPNOTSUPP); 53 } 54 55 static int 56 fdt_pinctrl_default_get_flags(device_t pinctrl, device_t gpio, uint32_t pin, 57 uint32_t *flags) 58 { 59 60 return (EOPNOTSUPP); 61 } 62}; 63 64# Needed for timestamping device probe/attach calls 65HEADER { 66 #include <sys/tslog.h> 67} 68 69# 70# Set pins to the specified configuration. The cfgxref arg is an xref phandle 71# to a descendent node (child, grandchild, ...) of the pinctrl device node. 72# Returns 0 on success or a standard errno value. 73# 74PROLOG { 75 TSENTER2(device_get_name(pinctrl)); 76} 77EPILOG { 78 TSEXIT2(device_get_name(pinctrl)); 79} 80METHOD int configure { 81 device_t pinctrl; 82 phandle_t cfgxref; 83}; 84 85 86# 87# Test if the pin is in gpio mode 88# Called from a gpio device 89# 90METHOD int is_gpio { 91 device_t pinctrl; 92 device_t gpio; 93 uint32_t pin; 94 bool *is_gpio; 95} DEFAULT fdt_pinctrl_default_is_gpio; 96 97# 98# Set the flags of a pin 99# Called from a gpio device 100# 101METHOD int set_flags { 102 device_t pinctrl; 103 device_t gpio; 104 uint32_t pin; 105 uint32_t flags; 106} DEFAULT fdt_pinctrl_default_set_flags; 107 108# 109# Get the flags of a pin 110# Called from a gpio device 111# 112METHOD int get_flags { 113 device_t pinctrl; 114 device_t gpio; 115 uint32_t pin; 116 uint32_t *flags; 117} DEFAULT fdt_pinctrl_default_get_flags; 118