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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2022 Bartosz Golaszewski <brgl@bgdev.pl>
#include <catch2/catch_all.hpp>
#include <gpiod.hpp>
#include "gpiosim.hpp"
#include "helpers.hpp"
using ::gpiosim::make_sim;
using namespace ::std::chrono_literals;
using direction = ::gpiod::line::direction;
using drive = ::gpiod::line::drive;
using edge = ::gpiod::line::edge;
using simval = ::gpiosim::chip::value;
using value = ::gpiod::line::value;
using values = ::gpiod::line::values;
namespace {
TEST_CASE("line_config constructor works", "[line-config]")
{
SECTION("no arguments - default values")
{
::gpiod::line_config cfg;
REQUIRE(cfg.get_line_settings().size() == 0);
}
}
TEST_CASE("adding line_settings to line_config works", "[line-config][line-settings]")
{
::gpiod::line_config cfg;
cfg.add_line_settings(4,
::gpiod::line_settings()
.set_direction(direction::INPUT)
.set_edge_detection(edge::RISING));
cfg.add_line_settings({7, 2},
::gpiod::line_settings()
.set_direction(direction::OUTPUT)
.set_drive(drive::OPEN_DRAIN));
auto settings = cfg.get_line_settings();
REQUIRE(settings.size() == 3);
REQUIRE(settings.at(2).direction() == direction::OUTPUT);
REQUIRE(settings.at(2).drive() == drive::OPEN_DRAIN);
REQUIRE(settings.at(4).direction() == direction::INPUT);
REQUIRE(settings.at(4).edge_detection() == edge::RISING);
REQUIRE(settings.at(7).direction() == direction::OUTPUT);
REQUIRE(settings.at(7).drive() == drive::OPEN_DRAIN);
}
TEST_CASE("line_config can be reset", "[line-config]")
{
::gpiod::line_config cfg;
cfg.add_line_settings({3, 4, 7},
::gpiod::line_settings()
.set_direction(direction::INPUT)
.set_edge_detection(edge::BOTH));
auto settings = cfg.get_line_settings();
REQUIRE(settings.size() == 3);
REQUIRE(settings.at(3).direction() == direction::INPUT);
REQUIRE(settings.at(3).edge_detection() == edge::BOTH);
REQUIRE(settings.at(4).direction() == direction::INPUT);
REQUIRE(settings.at(4).edge_detection() == edge::BOTH);
REQUIRE(settings.at(7).direction() == direction::INPUT);
REQUIRE(settings.at(7).edge_detection() == edge::BOTH);
cfg.reset();
REQUIRE(cfg.get_line_settings().size() == 0);
}
TEST_CASE("output values can be set globally", "[line-config]")
{
const values vals = { value::ACTIVE, value::INACTIVE, value::ACTIVE, value::INACTIVE };
auto sim = make_sim()
.set_num_lines(4)
.build();
::gpiod::line_config cfg;
SECTION("request with globally set output values")
{
cfg
.add_line_settings(
{0, 1, 2, 3},
::gpiod::line_settings().set_direction(direction::OUTPUT)
)
.set_output_values(vals);
auto request = ::gpiod::chip(sim.dev_path())
.prepare_request()
.set_line_config(cfg)
.do_request();
REQUIRE(sim.get_value(0) == simval::ACTIVE);
REQUIRE(sim.get_value(1) == simval::INACTIVE);
REQUIRE(sim.get_value(2) == simval::ACTIVE);
REQUIRE(sim.get_value(3) == simval::INACTIVE);
}
SECTION("read back global output values")
{
cfg
.add_line_settings(
{0, 1, 2, 3},
::gpiod::line_settings()
.set_direction(direction::OUTPUT)
.set_output_value(value::ACTIVE)
)
.set_output_values(vals);
auto settings = cfg.get_line_settings()[1];
REQUIRE(settings.output_value() == value::INACTIVE);
}
}
TEST_CASE("line_config stream insertion operator works", "[line-config]")
{
::gpiod::line_config cfg;
SECTION("empty config")
{
REQUIRE_THAT(cfg, stringify_matcher<::gpiod::line_config>(
"gpiod::line_config(num_settings=0)"));
}
SECTION("config with settings")
{
cfg.add_line_settings({0, 2},
::gpiod::line_settings()
.set_direction(direction::OUTPUT)
.set_drive(drive::OPEN_SOURCE)
);
REQUIRE_THAT(cfg, stringify_matcher<::gpiod::line_config>(
"gpiod::line_config(num_settings=2, "
"settings=[0: gpiod::line_settings(direction=OUTPUT, edge_detection=NONE, "
"bias=AS_IS, drive=OPEN_SOURCE, active-high, debounce_period=0, "
"event_clock=MONOTONIC, output_value=INACTIVE), "
"2: gpiod::line_settings(direction=OUTPUT, edge_detection=NONE, bias=AS_IS, "
"drive=OPEN_SOURCE, active-high, debounce_period=0, event_clock=MONOTONIC, "
"output_value=INACTIVE)])"));
}
}
} /* namespace */
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