Hardware: Fingerprint: Introducing Fingerprint HAL

Change-Id: I4e55c42841c3b6a1327a16bdf6d1d4bb3847c7f3
Signed-off-by: Sasha Levitskiy <sanek@google.com>

2 files changed, 118 insertions, 0 deletions

diff --git a/modules/fingerprint/Android.mk b/modules/fingerprint/Android.mk
new file mode 100644
index 0000000..58c0a83
--- /dev/null
+++ b/modules/fingerprint/Android.mk
@@ -0,0 +1,25 @@
+# Copyright (C) 2013 The Android Open Source 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.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := fingerprint.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := fingerprint.c
+LOCAL_SHARED_LIBRARIES := liblog
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/modules/fingerprint/fingerprint.c b/modules/fingerprint/fingerprint.c
new file mode 100644
index 0000000..3bdcdab
--- /dev/null
+++ b/modules/fingerprint/fingerprint.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2014 The Android Open Source 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.
+ */
+#define LOG_TAG "FingerprintHal"
+
+#include <errno.h>
+#include <string.h>
+#include <cutils/log.h>
+#include <hardware/hardware.h>
+#include <hardware/fingerprint.h>
+
+static int fingerprint_close(hw_device_t *dev)
+{
+    if (dev) {
+        free(dev);
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+static fingerprint_msg_t fingerprint_enroll(unsigned timeout_sec,
+                                            unsigned *data) {
+    (void)timeout_sec;
+    (void)data;
+    return FINGERPRINT_ERROR;
+}
+
+static fingerprint_msg_t fingerprint_remove(unsigned fingerprint_id) {
+    (void)fingerprint_id;
+    return FINGERPRINT_ERROR;
+}
+
+static fingerprint_msg_t fingerprint_match(unsigned fingerprint_id,
+                                            unsigned timeout_sec) {
+    (void)fingerprint_id;
+    (void)timeout_sec;
+    return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_open(const hw_module_t* module, const char* id,
+                            hw_device_t** device)
+{
+    (void)id;
+
+    if (device == NULL) {
+        ALOGE("NULL device on open");
+        return -EINVAL;
+    }
+
+    fingerprint_device_t *dev = malloc(sizeof(fingerprint_device_t));
+    memset(dev, 0, sizeof(fingerprint_device_t));
+
+    dev->common.tag = HARDWARE_DEVICE_TAG;
+    dev->common.version = 0;
+    dev->common.module = (struct hw_module_t*) module;
+    dev->common.close = fingerprint_close;
+
+    dev->enroll = fingerprint_enroll;
+    dev->remove = fingerprint_remove;
+    dev->match = fingerprint_match;
+
+    *device = (hw_device_t*) dev;
+    return 0;
+}
+
+static struct hw_module_methods_t fingerprint_module_methods = {
+    .open = fingerprint_open,
+};
+
+fingerprint_module_t HAL_MODULE_INFO_SYM = {
+    .common = {
+        .tag                = HARDWARE_MODULE_TAG,
+        .module_api_version = FINGERPRINT_MODULE_API_VERSION_1_0,
+        .hal_api_version    = HARDWARE_HAL_API_VERSION,
+        .id                 = FINGERPRINT_HARDWARE_MODULE_ID,
+        .name               = "Demo Fingerprint HAL",
+        .author             = "The Android Open Source Project",
+        .methods            = &fingerprint_module_methods,
+    },
+};