Implement phosphor-buttons based C++ and sdbusplus interfaces.
This phosphor-buttons module handles all the physical buttons
like Reset/Power/ID button pressed/released signals and the
simulate signals on button pressed/released in WebUI.
All the signals are exposed into dbus and let other
modules be aware.
Change-Id: I52144718ef54d403c5221e5afd0216b9494f8523
Signed-off-by: Kuiying Wang <kuiying.wang@intel.com>
diff --git a/src/gpio.cpp b/src/gpio.cpp
new file mode 100644
index 0000000..72c569a
--- /dev/null
+++ b/src/gpio.cpp
@@ -0,0 +1,193 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include <experimental/filesystem>
+#include <fcntl.h>
+#include <fstream>
+#include <phosphor-logging/elog-errors.hpp>
+#include <unistd.h>
+#include <xyz/openbmc_project/Common/error.hpp>
+#include "gpio.hpp"
+
+const static constexpr char* SYSMGR_SERVICE = "org.openbmc.managers.System";
+const static constexpr char* SYSMGR_OBJ_PATH = "/org/openbmc/managers/System";
+const static constexpr char* SYSMGR_INTERFACE = "org.openbmc.managers.System";
+
+void closeGpio(int fd)
+{
+ if (fd > 0)
+ {
+ ::close(fd);
+ }
+}
+
+int configGpio(const char* gpioName, int* fd, sdbusplus::bus::bus& bus)
+{
+ auto method = bus.new_method_call(SYSMGR_SERVICE, SYSMGR_OBJ_PATH,
+ SYSMGR_INTERFACE, "gpioInit");
+
+ method.append(gpioName);
+
+ auto result = bus.call(method);
+
+ if (result.is_method_error())
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "bus call error!");
+ return -1;
+ }
+
+ int32_t gpioNum;
+ std::string gpioDev;
+ std::string gpioDirection;
+
+ result.read(gpioDev, gpioNum, gpioDirection);
+
+ std::string devPath;
+
+ std::fstream stream;
+
+ stream.exceptions(std::ifstream::failbit | std::ifstream::badbit);
+
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/value";
+
+ std::experimental::filesystem::path fullPath(devPath);
+
+ if (std::experimental::filesystem::exists(fullPath))
+ {
+ phosphor::logging::log<phosphor::logging::level::INFO>(
+ "GPIO exported",
+ phosphor::logging::entry("PATH=%s", devPath.c_str()));
+ }
+ else
+ {
+ devPath.clear();
+ devPath = gpioDev + "/export";
+
+ stream.open(devPath, std::fstream::out);
+ try
+ {
+ stream << gpioNum;
+ stream.close();
+ }
+
+ catch (const std::exception &e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error in writing!",
+ phosphor::logging::entry("PATH=%s", devPath.c_str()),
+ phosphor::logging::entry("NUM=%d", gpioNum));
+ return -1;
+ }
+ }
+
+ if (gpioDirection == "out")
+ {
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/value";
+
+ uint32_t currentValue;
+
+ stream.open(devPath, std::fstream::in);
+ try
+ {
+ stream >> currentValue;
+ stream.close();
+ }
+
+ catch (const std::exception& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error in reading!",
+ phosphor::logging::entry("PATH=%s", devPath.c_str()));
+ return -1;
+ }
+
+ const char* direction = currentValue ? "high" : "low";
+
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/direction";
+
+ stream.open(devPath, std::fstream::out);
+ try
+ {
+ stream << direction;
+ stream.close();
+ }
+
+ catch (const std::exception& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error in writing!");
+ return -1;
+ }
+ }
+ else if (gpioDirection == "in")
+ {
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/direction";
+
+ stream.open(devPath, std::fstream::out);
+ try
+ {
+ stream << gpioDirection;
+ stream.close();
+ }
+
+ catch (const std::exception& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error in writing!");
+ return -1;
+ }
+ }
+ else if ((gpioDirection == "both"))
+ {
+
+ // For gpio configured as ‘both’, it is an interrupt pin and trigged on
+ // both rising and falling signals
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/edge";
+
+ stream.open(devPath, std::fstream::out);
+ try
+ {
+ stream << gpioDirection;
+ stream.close();
+ }
+
+ catch (const std::exception& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error in writing!");
+ return -1;
+ }
+ }
+
+ devPath.clear();
+ devPath = gpioDev + "/gpio" + std::to_string(gpioNum) + "/value";
+
+ *fd = ::open(devPath.c_str(), O_RDWR | O_NONBLOCK);
+
+ if (*fd < 0)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>("open error!");
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/id_button.cpp b/src/id_button.cpp
new file mode 100644
index 0000000..c543556
--- /dev/null
+++ b/src/id_button.cpp
@@ -0,0 +1,22 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include "id_button.hpp"
+
+void IDButton::simPress()
+{
+ pressed();
+}
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..bd4ec2a
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,68 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include "reset_button.hpp"
+#include "power_button.hpp"
+#include "id_button.hpp"
+
+int main(int argc, char* argv[])
+{
+ int ret = 0;
+
+ phosphor::logging::log<phosphor::logging::level::INFO>(
+ "Start power button service...");
+
+ sd_event* event = nullptr;
+ ret = sd_event_default(&event);
+ if (ret < 0)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error creating a default sd_event handler");
+ return ret;
+ }
+ EventPtr eventP{event};
+ event = nullptr;
+
+ sdbusplus::bus::bus bus = sdbusplus::bus::new_default();
+ sdbusplus::server::manager::manager objManager{
+ bus, "/xyz/openbmc_project/Chassis/Buttons"};
+
+ bus.request_name("xyz.openbmc_project.Chassis.Buttons");
+
+ PowerButton powerButton{bus, POWER_DBUS_OBJECT_NAME, eventP};
+
+ ResetButton resetButton{bus, RESET_DBUS_OBJECT_NAME, eventP};
+
+ IDButton idButton{bus, ID_DBUS_OBJECT_NAME, eventP};
+
+ try
+ {
+ bus.attach_event(eventP.get(), SD_EVENT_PRIORITY_NORMAL);
+ ret = sd_event_loop(eventP.get());
+ if (ret < 0)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(
+ "Error occurred during the sd_event_loop",
+ phosphor::logging::entry("RET=%d", ret));
+ }
+ }
+ catch (std::exception& e)
+ {
+ phosphor::logging::log<phosphor::logging::level::ERR>(e.what());
+ ret = -1;
+ }
+ return ret;
+}
diff --git a/src/power_button.cpp b/src/power_button.cpp
new file mode 100644
index 0000000..feadeee
--- /dev/null
+++ b/src/power_button.cpp
@@ -0,0 +1,27 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include "power_button.hpp"
+
+void PowerButton::simPress()
+{
+ pressed();
+}
+
+void PowerButton::simLongPress()
+{
+ pressedLong();
+}
diff --git a/src/reset_button.cpp b/src/reset_button.cpp
new file mode 100644
index 0000000..1747b71
--- /dev/null
+++ b/src/reset_button.cpp
@@ -0,0 +1,24 @@
+/*
+// Copyright (c) 2018 Intel Corporation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#include "xyz/openbmc_project/Chassis/Buttons/Reset/server.hpp"
+
+#include "reset_button.hpp"
+
+void ResetButton::simPress()
+{
+ pressed();
+}