From 07201315dd1e895d9726197110644bd7b987c37a Mon Sep 17 00:00:00 2001
From: "P.Adarsh Reddy" <padarshr@codeaurora.org>
Date: Sun, 19 Jan 2020 11:14:57 +0530
Subject: Add support for Boot Control Hal 1.1.

The 1.1 impl lib is named as "android.hardware.boot@1.0-impl-1.1-qti".
This is to serve 1.0 clients with the existing 1.0 getService call.
1.1 AOSP clients get the 1.0 instance and cast it to 1.1, and use
1.1 APIs (on virtual a/b enabled devices).
This makes use of the AOSP's libboot_control helper library to call
the 1.1 APIs to read/write to misc partition.

Change-Id: I65df17f4719949a4d54acdc18c3ef02458063f05
---
 1.1/impl/BootControl.cpp | 132 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 1.1/impl/BootControl.cpp

(limited to '1.1/impl/BootControl.cpp')

diff --git a/1.1/impl/BootControl.cpp b/1.1/impl/BootControl.cpp
new file mode 100644
index 0000000..4094d25
--- /dev/null
+++ b/1.1/impl/BootControl.cpp
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define LOG_TAG "android.hardware.boot@1.1-impl-qti"
+
+#include <memory>
+
+#include <log/log.h>
+
+#include "BootControl.h"
+
+namespace android {
+namespace hardware {
+namespace boot {
+namespace V1_1 {
+namespace implementation {
+
+using ::android::hardware::boot::V1_0::CommandResult;
+
+bool BootControl::Init() {
+    return bootcontrol_init();
+}
+
+Return<uint32_t> BootControl::getNumberSlots() {
+    return get_number_slots();
+}
+
+Return<uint32_t> BootControl::getCurrentSlot() {
+    return get_current_slot();
+}
+
+Return<void> BootControl::markBootSuccessful(markBootSuccessful_cb _hidl_cb) {
+    int ret = mark_boot_successful();
+    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 = set_active_boot_slot(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 = set_slot_as_unbootable(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 = is_slot_bootable(slot);
+    if (ret < 0) {
+        return BoolResult::INVALID_SLOT;
+    }
+    return ret ? BoolResult::TRUE : BoolResult::FALSE;
+}
+
+Return<BoolResult> BootControl::isSlotMarkedSuccessful(uint32_t slot) {
+    int32_t ret = is_slot_marked_successful(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 = get_suffix(slot);
+    if (suffix) {
+        ans = suffix;
+    }
+    _hidl_cb(ans);
+    return Void();
+}
+
+Return<bool> BootControl::setSnapshotMergeStatus(MergeStatus status) {
+    return set_snapshot_merge_status(status);
+}
+
+Return<MergeStatus> BootControl::getSnapshotMergeStatus() {
+    return get_snapshot_merge_status();
+}
+
+IBootControl* HIDL_FETCH_IBootControl(const char* /* hal */) {
+    auto module = std::make_unique<BootControl>();
+    if (!module->Init()) {
+        ALOGE("Could not initialize BootControl module");
+        return nullptr;
+    }
+    return module.release();
+}
+
+}  // namespace implementation
+}  // namespace V1_1
+}  // namespace boot
+}  // namespace hardware
+}  // namespace android
-- 
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