sm8450-common: Add hals.conf to load sensors.xiaomi to odm and move notifier to subdir

Change-Id: I9e16531e60fa6a0122330ee352cddd0840feb39c

sensors/sensor-notifier/utils/SensorNotifierUtils.cpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2024 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#define LOG_TAG "SensorNotifierUtils"
+
+#include "SensorNotifierUtils.h"
+
+#include <android-base/logging.h>
+
+bool readBool(int fd) {
+    char c;
+    int rc;
+
+    rc = lseek(fd, 0, SEEK_SET);
+    if (rc) {
+        LOG(ERROR) << "failed to seek fd, err: " << rc;
+        return false;
+    }
+
+    rc = read(fd, &c, sizeof(char));
+    if (rc != 1) {
+        LOG(ERROR) << "failed to read bool from fd, err: " << rc;
+        return false;
+    }
+
+    return c != '0';
+}
+
+disp_event_resp* parseDispEvent(int fd) {
+    disp_event header;
+    ssize_t headerSize = read(fd, &header, sizeof(header));
+    if (headerSize < sizeof(header)) {
+        LOG(ERROR) << "unexpected display event header size: " << headerSize;
+        return nullptr;
+    }
+
+    struct disp_event_resp* response =
+            reinterpret_cast<struct disp_event_resp*>(malloc(header.length));
+    response->base = header;
+
+    int dataLength = response->base.length - sizeof(response->base);
+    if (dataLength < 0) {
+        LOG(ERROR) << "invalid data length: " << response->base.length;
+        return nullptr;
+    }
+
+    ssize_t dataSize = read(fd, &response->data, dataLength);
+    if (dataSize < dataLength) {
+        LOG(ERROR) << "unexpected display event data size: " << dataSize;
+        return nullptr;
+    }
+
+    return response;
+}