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# 27 28#include <sys/types.h> 29#include <sys/bus.h> 30#include <dev/ofw/openfirm.h> 31 32# 33# This is the interface that fdt_pinctrl drivers provide to other drivers. 34# 35 36INTERFACE fdt_pinctrl; 37 38CODE { 39 static int 40 fdt_pinctrl_default_is_gpio(device_t pinctrl, device_t gpio, bool *is_gpio) 41 { 42 43 return (EOPNOTSUPP); 44 } 45 46 static int 47 fdt_pinctrl_default_set_flags(device_t pinctrl, device_t gpio, uint32_t pin, 48 uint32_t flags) 49 { 50 51 return (EOPNOTSUPP); 52 } 53 54 static int 55 fdt_pinctrl_default_get_flags(device_t pinctrl, device_t gpio, uint32_t pin, 56 uint32_t *flags) 57 { 58 59 return (EOPNOTSUPP); 60 } 61}; 62 63# Needed for timestamping device probe/attach calls 64HEADER { 65 #include <sys/tslog.h> 66} 67 68# 69# Set pins to the specified configuration. The cfgxref arg is an xref phandle 70# to a descendent node (child, grandchild, ...) of the pinctrl device node. 71# Returns 0 on success or a standard errno value. 72# 73PROLOG { 74 TSENTER2(device_get_name(pinctrl)); 75} 76EPILOG { 77 TSEXIT2(device_get_name(pinctrl)); 78} 79METHOD int configure { 80 device_t pinctrl; 81 phandle_t cfgxref; 82}; 83 84 85# 86# Test if the pin is in gpio mode 87# Called from a gpio device 88# 89METHOD int is_gpio { 90 device_t pinctrl; 91 device_t gpio; 92 uint32_t pin; 93 bool *is_gpio; 94} DEFAULT fdt_pinctrl_default_is_gpio; 95 96# 97# Set the flags of a pin 98# Called from a gpio device 99# 100METHOD int set_flags { 101 device_t pinctrl; 102 device_t gpio; 103 uint32_t pin; 104 uint32_t flags; 105} DEFAULT fdt_pinctrl_default_set_flags; 106 107# 108# Get the flags of a pin 109# Called from a gpio device 110# 111METHOD int get_flags { 112 device_t pinctrl; 113 device_t gpio; 114 uint32_t pin; 115 uint32_t *flags; 116} DEFAULT fdt_pinctrl_default_get_flags; 117