From 8657d3fdc8bd2b68a0aae406827e578a5cf87301 Mon Sep 17 00:00:00 2001
From: GuaiYiHu <guaiyihu@foxmail.com>
Date: Thu, 19 Sep 2019 19:22:28 +0200
Subject: sdm660-common: biometrics: Rework the fpc-goodix differentiation

Change-Id: Ib6be2c12d1fc7e9354001f7eb0b28e740eecde46
---
 biometrics/BiometricsFingerprint.cpp | 36 ++++++++++------------
 biometrics/Hardware.h                | 58 ------------------------------------
 2 files changed, 16 insertions(+), 78 deletions(-)
 delete mode 100644 biometrics/Hardware.h

diff --git a/biometrics/BiometricsFingerprint.cpp b/biometrics/BiometricsFingerprint.cpp
index 42243ab..311bbc6 100644
--- a/biometrics/BiometricsFingerprint.cpp
+++ b/biometrics/BiometricsFingerprint.cpp
@@ -16,15 +16,13 @@
  */
 #define LOG_TAG "android.hardware.biometrics.fingerprint@2.1-service.xiaomi_sdm660"
 
-#include <cutils/properties.h>
-
 #include <hardware/hw_auth_token.h>
 
 #include <hardware/hardware.h>
 #include <hardware/fingerprint.h>
 #include "BiometricsFingerprint.h"
-#include "Hardware.h"
 
+#include <cutils/properties.h>
 #include <inttypes.h>
 #include <unistd.h>
 
@@ -216,6 +214,7 @@ IBiometricsFingerprint* BiometricsFingerprint::getInstance() {
 
 void setFpVendorProp(const char *fp_vendor) {
     property_set("persist.vendor.sys.fp.vendor", fp_vendor);
+    property_set("ro.boot.fpsensor", fp_vendor);
 }
 
 fingerprint_device_t* getDeviceForVendor(const char *class_name)
@@ -223,18 +222,7 @@ fingerprint_device_t* getDeviceForVendor(const char *class_name)
     const hw_module_t *hw_module = nullptr;
     int err;
 
-    if (!strcmp(class_name, "fpc")) {
-        setFpVendorProp("fpc");
-        err = load("/system/vendor/lib64/hw/fingerprint.fpc.so", &hw_module);
-    } else if (!strcmp(class_name, "gdx")) {
-        setFpVendorProp("goodix");
-        err = load("/system/vendor/lib64/hw/fingerprint.goodix.so", &hw_module);
-    } else {
-        setFpVendorProp("none");
-        ALOGE("No fingerprint module class specified.");
-        err = 1;
-    }
-
+    err = hw_get_module_by_class(FINGERPRINT_HARDWARE_MODULE_ID, class_name, &hw_module);
     if (err) {
         ALOGE("Failed to get fingerprint module: class %s, error %d", class_name, err);
         return nullptr;
@@ -276,17 +264,25 @@ fingerprint_device_t* getDeviceForVendor(const char *class_name)
 fingerprint_device_t* getFingerprintDevice()
 {
     fingerprint_device_t *fp_device;
-    char class_name[PROPERTY_VALUE_MAX];
 
-    property_get("ro.boot.fpsensor",
-        class_name, NULL);
+    fp_device = getDeviceForVendor("fpc");
+    if (fp_device == nullptr) {
+        ALOGE("Failed to load fpc fingerprint module");
+    } else {
+        setFpVendorProp("fpc");
+        return fp_device;
+    }
 
-    fp_device = getDeviceForVendor(class_name);
+    fp_device = getDeviceForVendor("goodix");
     if (fp_device == nullptr) {
-        ALOGE("Failed to load %s fingerprint module", class_name);
+        ALOGE("Failed to load goodix fingerprint module");
     } else {
+        setFpVendorProp("goodix");
         return fp_device;
     }
+
+    setFpVendorProp("none");
+
     return nullptr;
 }
 
diff --git a/biometrics/Hardware.h b/biometrics/Hardware.h
deleted file mode 100644
index 90a6067..0000000
--- a/biometrics/Hardware.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (C) 2017, The LineageOS Project
- *
- * 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.
- */
-#ifndef _CUSTOM_HARDWARE_H
-#define _CUSTOM_HARDWARE_H
-
-#include <dlfcn.h>
-
-#include <cutils/log.h>
-
-#include <utils/threads.h>
-
-static union {
-    const fingerprint_module_t *module;
-    const hw_module_t *hw_module;
-} vendor;
-
-static int load(const char *path,
-        const struct hw_module_t **pHmi)
-{
-    int status = 0;
-    void *handle = NULL;
-    struct hw_module_t *hmi = NULL;
-
-    ALOGE("Opening vendor module from : %s", path);
-    handle = dlopen(path, RTLD_NOW);
-    if (handle == NULL) {
-        status = -EINVAL;
-        goto done;
-    }
-
-    hmi = (struct hw_module_t *)dlsym(handle,
-        HAL_MODULE_INFO_SYM_AS_STR);
-    if (hmi == NULL) {
-        status = -EINVAL;
-        goto done;
-    }
-
-    hmi->dso = handle;
-
-done:
-    *pHmi = hmi;
-
-    return status;
-}
-#endif /* _CUSTOM_HARDWARE_H */
-- 
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