universal7885: Move FM HAL to AIDL impl

universal7885-common/apps/aidl-support/fm/default/Android.bp

@@ -0,0 +1,17 @@
+cc_binary {
+    name: "vendor.eureka.hardware.fmradio-service",
+    srcs: [
+        "FMRadio.cpp",
+        "service.cpp",
+    ],
+    defaults: ["eureka_defaults"],
+    shared_libs: [
+        "libbase",
+        "libbinder_ndk",
+        "liblog",
+        "libfileio",
+        "vendor.eureka.hardware.fmradio-ndk",
+    ],
+    init_rc: ["vendor.eureka.hardware.fmradio-service.rc"],
+    vintf_fragments: ["vendor.eureka.hardware.fmradio.xml"],
+}

universal7885-common/apps/aidl-support/fm/default/FMRadio.cpp

@@ -0,0 +1,84 @@
+// Copyright (C) 2021 Eureka Team
+//
+// 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 "FMRadio.h"
+#include <fstream>
+#include <iostream>
+#include <sstream>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <FileIO.h>
+
+static int mChannelSpacing = 3;
+
+namespace aidl::vendor::eureka::hardware::fmradio {
+
+constexpr const char *FM_FREQ_CTL =
+    "/sys/devices/virtual/s610_radio/s610_radio/radio_freq_ctrl";
+constexpr const char *FM_FREQ_SEEK =
+    "/sys/devices/virtual/s610_radio/s610_radio/radio_freq_seek";
+
+::ndk::ScopedAStatus FMRadio::setManualFreq(float freq) {
+  FileIO::writeline(FM_FREQ_CTL, freq * 1000);
+  return ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus FMRadio::adjustFreqByStep(Direction dir) {
+  std::string value = "";
+  if (dir == Direction::UP) {
+    value = "1 " + std::to_string(mChannelSpacing * 10);
+  } else if (dir == Direction::DOWN) {
+    value = "0 " + std::to_string(mChannelSpacing * 10);
+  }
+  FileIO::writeline(FM_FREQ_SEEK, value);
+  return ndk::ScopedAStatus::ok();
+}
+::ndk::ScopedAStatus FMRadio::isAvailable(bool *_aidl_return) {
+  struct stat info;
+  *_aidl_return =
+      stat("/sys/devices/virtual/s610_radio/s610_radio/", &info) != 0;
+  return ndk::ScopedAStatus::ok();
+}
+::ndk::ScopedAStatus FMRadio::setChannelSpacing(Space space) {
+  mChannelSpacing = static_cast<int>(space);
+  return ndk::ScopedAStatus::ok();
+}
+::ndk::ScopedAStatus FMRadio::getFreqFromSysfs(int32_t *_aidl_return) {
+  *_aidl_return = FileIO::readline(FM_FREQ_CTL);
+  return ndk::ScopedAStatus::ok();
+}
+::ndk::ScopedAStatus FMRadio::getChannelSpacing(Space *_aidl_return) {
+  switch (mChannelSpacing) {
+  case 1:
+    *_aidl_return = Space::CHANNEL_SPACING_10HZ;
+    break;
+  case 2:
+    *_aidl_return = Space::CHANNEL_SPACING_20HZ;
+    break;
+  case 3:
+    *_aidl_return = Space::CHANNEL_SPACING_30HZ;
+    break;
+  case 4:
+    *_aidl_return = Space::CHANNEL_SPACING_40HZ;
+    break;
+  case 5:
+    *_aidl_return = Space::CHANNEL_SPACING_50HZ;
+    break;
+  default:
+    break;
+  }
+  return ndk::ScopedAStatus::ok();
+}
+} // namespace vendor::eureka::hardware::fmradio::V1_2

universal7885-common/apps/aidl-support/fm/default/FMRadio.h

@@ -0,0 +1,32 @@
+// Copyright (C) 2021 Eureka Team
+//
+// 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.
+
+#pragma once
+
+#include <aidl/vendor/eureka/hardware/fmradio/BnFMRadio.h>
+
+namespace aidl::vendor::eureka::hardware::fmradio {
+
+struct FMRadio : public BnFMRadio {
+public:
+  FMRadio() = default;
+  // Methods from aidl::vendor::eureka::hardware::fmradio::IFMRadio follow.
+  ::ndk::ScopedAStatus setManualFreq(float freq) override;
+  ::ndk::ScopedAStatus adjustFreqByStep(Direction dir) override;
+  ::ndk::ScopedAStatus isAvailable(bool *aidl_return) override;
+  ::ndk::ScopedAStatus getFreqFromSysfs(int32_t *aidl_return) override;
+  ::ndk::ScopedAStatus setChannelSpacing(Space space) override;
+  ::ndk::ScopedAStatus getChannelSpacing(Space *_aidl_return) override;
+};
+} // namespace aidl::vendor::eureka::hardware::fmradio

universal7885-common/apps/aidl-support/fm/default/service.cpp

@@ -0,0 +1,33 @@
+// Copyright (C) 2021 Eureka Team
+//
+// 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 <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <android-base/logging.h>
+
+#include "FMRadio.h"
+
+using ::aidl::vendor::eureka::hardware::fmradio::FMRadio;
+
+int main() {
+  ABinderProcess_setThreadPoolMaxThreadCount(0);
+
+  std::shared_ptr<FMRadio> fm_service = ndk::SharedRefBase::make<FMRadio>();
+
+  const std::string instance = std::string() + FMRadio::descriptor + "/default";
+  binder_status_t status = AServiceManager_addService(fm_service->asBinder().get(), instance.c_str());
+  CHECK(status == STATUS_OK);
+  ABinderProcess_joinThreadPool();
+  return -1; // should never get here
+}

universal7885-common/apps/aidl-support/fm/default/vendor.eureka.hardware.fmradio-service.rc

@@ -0,0 +1,4 @@
+service fm-hal-aidl /system/bin/vendor.eureka.hardware.fmradio-service
+    class hal
+    user root
+    group root

universal7885-common/apps/aidl-support/fm/default/vendor.eureka.hardware.fmradio.xml

@@ -0,0 +1,6 @@
+<manifest version="1.0" type="framework">
+   <hal format="aidl">
+       <name>vendor.eureka.hardware.fmradio</name>
+       <fqname>IFMRadio/default</fqname>
+   </hal>
+</manifest>