Add boot_control HIDL default implementation

Create basic implementation that passes commands
through to the old HAL implementation.

Bug: 31864052
Test: Ran and compared output to old implementation
Change-Id: I01f4450dc3a1893e13b8fb325ea40cf9c98297be
Signed-off-by: Connor O'Brien <connoro@google.com>

boot/1.0/default/Android.mk

@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.boot@1.0-impl
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := \
+    BootControl.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+    liblog \
+    libhidl \
+    libhwbinder \
+    libhardware \
+    libutils \
+    android.hardware.boot@1.0 \
+
+include $(BUILD_SHARED_LIBRARY)

boot/1.0/default/BootControl.cpp

@@ -0,0 +1,98 @@
+#define LOG_TAG "android.hardware.boot@1.0-impl"
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/boot_control.h>
+#include "BootControl.h"
+
+namespace android {
+namespace hardware {
+namespace boot {
+namespace V1_0 {
+namespace implementation {
+
+BootControl::BootControl(boot_control_module_t *module) : mModule(module){
+}
+
+// Methods from ::android::hardware::boot::V1_0::IBootControl follow.
+Return<uint32_t> BootControl::getNumberSlots()  {
+    return mModule->getNumberSlots(mModule);
+}
+
+Return<uint32_t> BootControl::getCurrentSlot()  {
+    return mModule->getCurrentSlot(mModule);
+}
+
+Return<void> BootControl::markBootSuccessful(markBootSuccessful_cb _hidl_cb)  {
+    int ret = mModule->markBootSuccessful(mModule);
+    struct CommandResult cr;
+    cr.success = (ret == 0);
+    cr.errMsg = strerror(-ret);
+    _hidl_cb(cr);
+    return Void();
+}
+
+Return<void> BootControl::setActiveBootSlot(uint32_t slot, setActiveBootSlot_cb _hidl_cb)  {
+    int ret = mModule->setActiveBootSlot(mModule, slot);
+    struct CommandResult cr;
+    cr.success = (ret == 0);
+    cr.errMsg = strerror(-ret);
+    _hidl_cb(cr);
+    return Void();
+}
+
+Return<void> BootControl::setSlotAsUnbootable(uint32_t slot, setSlotAsUnbootable_cb _hidl_cb)  {
+    int ret = mModule->setSlotAsUnbootable(mModule, slot);
+    struct CommandResult cr;
+    cr.success = (ret == 0);
+    cr.errMsg = strerror(-ret);
+    _hidl_cb(cr);
+    return Void();
+}
+
+Return<BoolResult> BootControl::isSlotBootable(uint32_t slot)  {
+    int32_t ret = mModule->isSlotBootable(mModule, slot);
+    if (ret < 0) {
+        return BoolResult::INVALID_SLOT;
+    }
+    return ret ? BoolResult::TRUE : BoolResult::FALSE;
+}
+
+Return<BoolResult> BootControl::isSlotMarkedSuccessful(uint32_t slot)  {
+    int32_t ret = mModule->isSlotMarkedSuccessful(mModule, slot);
+    if (ret < 0) {
+        return BoolResult::INVALID_SLOT;
+    }
+    return ret ? BoolResult::TRUE : BoolResult::FALSE;
+}
+
+Return<void> BootControl::getSuffix(uint32_t slot, getSuffix_cb _hidl_cb)  {
+    hidl_string ans;
+    const char *suffix = mModule->getSuffix(mModule, slot);
+    if (suffix) {
+        ans = suffix;
+    }
+    _hidl_cb(ans);
+    return Void();
+}
+
+
+IBootControl* HIDL_FETCH_IBootControl(const char* hal) {
+    int ret = 0;
+    boot_control_module_t* module = NULL;
+    hw_module_t **hwm = reinterpret_cast<hw_module_t**>(&module);
+    ret = hw_get_module(hal, const_cast<const hw_module_t**>(hwm));
+    if (ret)
+    {
+        ALOGE("hw_get_module %s failed: %d", hal, ret);
+        return nullptr;
+    }
+    module->init(module);
+    return new BootControl(module);
+}
+
+} // namespace implementation
+}  // namespace V1_0
+}  // namespace boot
+}  // namespace hardware
+}  // namespace android

boot/1.0/default/BootControl.h

@@ -0,0 +1,46 @@
+#ifndef HIDL_GENERATED_android_hardware_boot_V1_0_BootControl_H_
+#define HIDL_GENERATED_android_hardware_boot_V1_0_BootControl_H_
+
+#include <android/hardware/boot/1.0/IBootControl.h>
+#include <hidl/Status.h>
+
+#include <hidl/MQDescriptor.h>
+namespace android {
+namespace hardware {
+namespace boot {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::boot::V1_0::BoolResult;
+using ::android::hardware::boot::V1_0::CommandResult;
+using ::android::hardware::boot::V1_0::IBootControl;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_string;
+using ::android::sp;
+
+struct BootControl : public IBootControl {
+    BootControl(boot_control_module_t* module);
+    // Methods from ::android::hardware::boot::V1_0::IBootControl follow.
+    Return<uint32_t> getNumberSlots()  override;
+    Return<uint32_t> getCurrentSlot()  override;
+    Return<void> markBootSuccessful(markBootSuccessful_cb _hidl_cb)  override;
+    Return<void> setActiveBootSlot(uint32_t slot, setActiveBootSlot_cb _hidl_cb)  override;
+    Return<void> setSlotAsUnbootable(uint32_t slot, setSlotAsUnbootable_cb _hidl_cb)  override;
+    Return<BoolResult> isSlotBootable(uint32_t slot)  override;
+    Return<BoolResult> isSlotMarkedSuccessful(uint32_t slot)  override;
+    Return<void> getSuffix(uint32_t slot, getSuffix_cb _hidl_cb)  override;
+private:
+    boot_control_module_t* mModule;
+};
+
+extern "C" IBootControl* HIDL_FETCH_IBootControl(const char* name);
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace boot
+}  // namespace hardware
+}  // namespace android
+
+#endif  // HIDL_GENERATED_android_hardware_boot_V1_0_BootControl_H_