From b23aaf793db4eabe9110affb9695ae99a1f68d2f Mon Sep 17 00:00:00 2001 From: Jesse Chan Date: Sun, 5 Feb 2017 21:18:09 +0800 Subject: [PATCH] add Samsung BAUTH Fingerprint HAL Change-Id: I3c0d3e2a0f9b77f0202cbdb0a75a00b760afcd8c --- Android.mk | 1 + fingerprint/Android.mk | 5 + fingerprint/bauth/Android.mk | 15 +++ fingerprint/bauth/fingerprint.c | 193 ++++++++++++++++++++++++++++++++ 4 files changed, 214 insertions(+) create mode 100644 fingerprint/Android.mk create mode 100644 fingerprint/bauth/Android.mk create mode 100644 fingerprint/bauth/fingerprint.c diff --git a/Android.mk b/Android.mk index e08de6d2..fa697a2d 100644 --- a/Android.mk +++ b/Android.mk @@ -40,6 +40,7 @@ include $(SAM_ROOT)/AdvancedDisplay/Android.mk include $(SAM_ROOT)/audio/Android.mk include $(SAM_ROOT)/consumerir/Android.mk include $(SAM_ROOT)/dtbhtool/Android.mk +include $(SAM_ROOT)/fingerprint/Android.mk include $(SAM_ROOT)/liblights/Android.mk include $(SAM_ROOT)/modemloader/Android.mk include $(SAM_ROOT)/power/Android.mk diff --git a/fingerprint/Android.mk b/fingerprint/Android.mk new file mode 100644 index 00000000..51fd3317 --- /dev/null +++ b/fingerprint/Android.mk @@ -0,0 +1,5 @@ +FP_ROOT := $(call my-dir) + +ifneq ($(TARGET_SEC_FP_HAL_VARIANT),) +include $(FP_ROOT)/$(TARGET_SEC_FP_HAL_VARIANT)/Android.mk +endif diff --git a/fingerprint/bauth/Android.mk b/fingerprint/bauth/Android.mk new file mode 100644 index 00000000..e4041dab --- /dev/null +++ b/fingerprint/bauth/Android.mk @@ -0,0 +1,15 @@ +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_SRC_FILES := \ + fingerprint.c + +LOCAL_SHARED_LIBRARIES := \ + libhardware liblog + +LOCAL_MODULE_RELATIVE_PATH := hw +LOCAL_MODULE := fingerprint.$(TARGET_BOARD_PLATFORM) +LOCAL_MODULE_TAGS := optional + +include $(BUILD_SHARED_LIBRARY) diff --git a/fingerprint/bauth/fingerprint.c b/fingerprint/bauth/fingerprint.c new file mode 100644 index 00000000..55a56b80 --- /dev/null +++ b/fingerprint/bauth/fingerprint.c @@ -0,0 +1,193 @@ +/* + * Copyright (C) 2017 Jesse Chan, 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. + */ + +#define LOG_TAG "SS Fingerprint HAL" + +#include +#include +#include + +#include + +#include +#include +#include + +typedef struct { + void *libhandle; + int (*ss_fingerprint_close)(void); + uint64_t (*ss_fingerprint_pre_enroll)(void); + int (*ss_fingerprint_enroll)(const hw_auth_token_t *hat, uint32_t gid, uint32_t timeout_sec); + int (*ss_fingerprint_post_enroll)(void); + uint64_t (*ss_fingerprint_get_auth_id)(void); + int (*ss_fingerprint_remove)(uint32_t gid, uint32_t fid); + int (*ss_fingerprint_set_active_group)(uint32_t gid, const char *store_path); + int (*ss_fingerprint_authenticate)(uint64_t operation_id, uint32_t gid); + int (*ss_set_notify_callback)(fingerprint_notify_t notify); + int (*ss_fingerprint_cancel)(void); + int (*ss_fingerprint_open)(const char *id); +} bauth_server_handle_t; + +bauth_server_handle_t* bauth_handle; + +static int load_bauth_server(void) +{ + bauth_handle = (bauth_server_handle_t *)malloc(sizeof(bauth_server_handle_t)); + if (bauth_handle == NULL) + goto no_memory; + + void *libhandle = bauth_handle->libhandle; + + libhandle = dlopen("libbauthserver.so", RTLD_NOW); + bauth_handle->ss_fingerprint_close = dlsym(libhandle, "ss_fingerprint_close"); + bauth_handle->ss_fingerprint_pre_enroll = dlsym(libhandle, "ss_fingerprint_pre_enroll"); + bauth_handle->ss_fingerprint_enroll = dlsym(libhandle, "ss_fingerprint_enroll"); + bauth_handle->ss_fingerprint_post_enroll = dlsym(libhandle, "ss_fingerprint_post_enroll"); + bauth_handle->ss_fingerprint_get_auth_id = dlsym(libhandle, "ss_fingerprint_get_auth_id"); + bauth_handle->ss_fingerprint_remove = dlsym(libhandle, "ss_fingerprint_remove"); + bauth_handle->ss_fingerprint_set_active_group = dlsym(libhandle, "ss_fingerprint_set_active_group"); + bauth_handle->ss_fingerprint_authenticate = dlsym(libhandle, "ss_fingerprint_authenticate"); + bauth_handle->ss_set_notify_callback = dlsym(libhandle, "ss_set_notify_callback"); + bauth_handle->ss_fingerprint_cancel = dlsym(libhandle, "ss_fingerprint_cancel"); + bauth_handle->ss_fingerprint_open = dlsym(libhandle, "ss_fingerprint_open"); + + return 0; + +no_memory: + ALOGE("%s: not enough memory to load the libhandle", __func__); + return -ENOMEM; +} + +static int fingerprint_close(hw_device_t *dev) +{ + bauth_handle->ss_fingerprint_close(); + + if (dev) + free(dev); + + return 0; +} + +static uint64_t fingerprint_pre_enroll(struct fingerprint_device __unused *dev) +{ + return bauth_handle->ss_fingerprint_pre_enroll(); +} + +static int fingerprint_enroll(struct fingerprint_device __unused *dev, const hw_auth_token_t *hat, + uint32_t gid, uint32_t timeout_sec) +{ + return bauth_handle->ss_fingerprint_enroll(hat, gid, timeout_sec); +} + +static int fingerprint_post_enroll(struct fingerprint_device __unused *dev) +{ + return bauth_handle->ss_fingerprint_post_enroll(); +} + +static uint64_t fingerprint_get_auth_id(struct fingerprint_device __unused *dev) +{ + return bauth_handle->ss_fingerprint_get_auth_id(); +} + +static int fingerprint_cancel(struct fingerprint_device __unused *dev) +{ + return bauth_handle->ss_fingerprint_cancel(); +} + +static int fingerprint_remove(struct fingerprint_device __unused *dev, uint32_t gid, uint32_t fid) +{ + return bauth_handle->ss_fingerprint_remove(gid, fid); +} + +static int fingerprint_set_active_group(struct fingerprint_device __unused *dev, uint32_t gid, + const char *store_path) +{ + return bauth_handle->ss_fingerprint_set_active_group(gid, store_path); +} + +static int fingerprint_authenticate(struct fingerprint_device __unused *dev, uint64_t operation_id, + uint32_t gid) +{ + return bauth_handle->ss_fingerprint_authenticate(operation_id, gid); +} + +static int set_notify_callback(struct fingerprint_device *dev, fingerprint_notify_t notify) +{ + /* Decorate with locks */ + dev->notify = notify; + return bauth_handle->ss_set_notify_callback(notify); +} + +static int fingerprint_open(const hw_module_t* module, const char *id, hw_device_t** device) +{ + int ret; + fingerprint_device_t *dev = NULL; + + if (device == NULL) { + ALOGE("NULL device on open"); + ret = -ENODEV; + goto fail; + } + + ret = load_bauth_server(); + if (ret < 0) + goto fail; + + dev = (fingerprint_device_t*)calloc(1, sizeof(fingerprint_device_t)); + if (dev == NULL) { + ret = -ENOMEM; + goto fail; + } + + dev->common.tag = HARDWARE_DEVICE_TAG; + dev->common.version = FINGERPRINT_MODULE_API_VERSION_2_0; + dev->common.module = (struct hw_module_t*) module; + dev->common.close = fingerprint_close; + + dev->pre_enroll = fingerprint_pre_enroll; + dev->enroll = fingerprint_enroll; + dev->post_enroll = fingerprint_post_enroll; + dev->get_authenticator_id = fingerprint_get_auth_id; + dev->cancel = fingerprint_cancel; + dev->remove = fingerprint_remove; + dev->set_active_group = fingerprint_set_active_group; + dev->authenticate = fingerprint_authenticate; + dev->set_notify = set_notify_callback; + dev->notify = NULL; + + *device = (hw_device_t*) dev; + return (*bauth_handle->ss_fingerprint_open)(id); + +fail: + ALOGE("%s: failed to open FP device (ret=%d)", __func__, ret); + return ret; +} + +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_2_0, + .hal_api_version = HARDWARE_HAL_API_VERSION, + .id = FINGERPRINT_HARDWARE_MODULE_ID, + .name = "Samsung TZ Fingerprint HAL", + .author = "The LineageOS Project", + .methods = &fingerprint_module_methods, + }, +};