summaryrefslogtreecommitdiffstats
path: root/gpswrapper/gps.c
diff options
context:
space:
mode:
Diffstat (limited to 'gpswrapper/gps.c')
-rw-r--r--gpswrapper/gps.c203
1 files changed, 0 insertions, 203 deletions
diff --git a/gpswrapper/gps.c b/gpswrapper/gps.c
deleted file mode 100644
index de2546d..0000000
--- a/gpswrapper/gps.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/******************************************************************************
- * GPS HAL wrapper
- * wrapps around Samsung GPS Libary and replaces a faulty pointer to
- * a faulty function from Samsung that will cause the system_server
- * to crash.
- *
- * Copyright 2010 - Kolja Dummann
- *
- * 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.
- *
- ******************************************************************************/
-
-#include <hardware/hardware.h>
-#include <hardware/gps.h>
-#include <errno.h>
-#include <dlfcn.h>
-
-//#define ALOG_NDEBUG 0
-
-#include <stdlib.h>
-#define ALOG_TAG "gps-wrapper"
-#include <utils/Log.h>
-
-#define ORIGINAL_HAL_PATH "/system/lib/hw/vendor-gps.exynos4.so"
-
-static const AGpsRilInterface* oldAGPSRIL = NULL;
-static AGpsRilInterface newAGPSRIL;
-
-static const GpsInterface* originalGpsInterface = NULL;
-static GpsInterface newGpsInterface;
-
-/**
- * Load the file defined by the variant and if successful
- * return the dlopen handle and the hmi.
- * @return 0 = success, !0 = failure.
- */
-static int load(const char *id,
- const char *path,
- const struct hw_module_t **pHmi)
-{
- int status;
- void *handle;
- struct hw_module_t *hmi;
-
- /*
- * load the symbols resolving undefined symbols before
- * dlopen returns. Since RTLD_GLOBAL is not or'd in with
- * RTLD_NOW the external symbols will not be global
- */
- handle = dlopen(path, RTLD_NOW);
- if (handle == NULL) {
- char const *err_str = dlerror();
- ALOGE("load: module=%s\n%s", path, err_str?err_str:"unknown");
- status = -EINVAL;
- goto done;
- }
-
- /* Get the address of the struct hal_module_info. */
- const char *sym = HAL_MODULE_INFO_SYM_AS_STR;
- hmi = (struct hw_module_t *)dlsym(handle, sym);
- if (hmi == NULL) {
- ALOGE("load: couldn't find symbol %s", sym);
- status = -EINVAL;
- goto done;
- }
-
- /* Check that the id matches */
- if (strcmp(id, hmi->id) != 0) {
- ALOGE("load: id=%s != hmi->id=%s", id, hmi->id);
- status = -EINVAL;
- goto done;
- }
-
- hmi->dso = handle;
-
- /* success */
- status = 0;
-
- done:
- if (status != 0) {
- hmi = NULL;
- if (handle != NULL) {
- dlclose(handle);
- handle = NULL;
- }
- } else {
- ALOGV("loaded HAL id=%s path=%s hmi=%p handle=%p",
- id, path, *pHmi, handle);
- }
-
- *pHmi = hmi;
-
- return status;
-}
-
-static void update_network_state_wrapper(int connected, int type, int roaming, const char* extra_info)
-{
- ALOGI("%s was called and saved your from a faulty implementation ;-)", __func__);
-}
-
-static const void* wrapper_get_extension(const char* name)
-{
- ALOGV("%s was called", __func__);
-
- if (!strcmp(name, AGPS_RIL_INTERFACE) && (oldAGPSRIL = originalGpsInterface->get_extension(name)))
- {
- ALOGV("%s AGPS_RIL_INTERFACE extension requested", __func__);
- /* use a wrapper to avoid calling samsungs faulty implemetation */
- newAGPSRIL.size = sizeof(AGpsRilInterface);
- newAGPSRIL.init = oldAGPSRIL->init;
- newAGPSRIL.set_ref_location = oldAGPSRIL->set_ref_location;
- newAGPSRIL.set_set_id = oldAGPSRIL->set_set_id;
- newAGPSRIL.ni_message = oldAGPSRIL->ni_message;
- ALOGV("%s setting update_network_state_wrapper", __func__);
- newAGPSRIL.update_network_state = update_network_state_wrapper;
- return &newAGPSRIL;
- }
- return originalGpsInterface->get_extension(name);
-}
-
-/* HAL Methods */
-const GpsInterface* gps_get_gps_interface(struct gps_device_t* dev)
-{
- hw_module_t* module;
- int err;
-
- ALOGV("%s was called", __func__);
-
- err = load(GPS_HARDWARE_MODULE_ID, ORIGINAL_HAL_PATH, (hw_module_t const**)&module);
-
- if (err == 0) {
- ALOGV("%s vendor lib loaded", __func__);
- hw_device_t* device;
- struct gps_device_t *gps_device;
- err = module->methods->open(module, GPS_HARDWARE_MODULE_ID, &device);
- if (err == 0) {
- ALOGV("%s got gps device", __func__);
- gps_device = (struct gps_device_t *)device;
- originalGpsInterface = gps_device->get_gps_interface(gps_device);
- ALOGV("%s device set", __func__);
- }
- }
-
- if(originalGpsInterface)
- {
- ALOGV("%s exposing callbacks", __func__);
- newGpsInterface.size = sizeof(GpsInterface);
- newGpsInterface.init = originalGpsInterface->init;
- newGpsInterface.start = originalGpsInterface->start;
- newGpsInterface.stop = originalGpsInterface->stop;
- newGpsInterface.cleanup = originalGpsInterface->cleanup;
- newGpsInterface.inject_time = originalGpsInterface->inject_time;
- newGpsInterface.inject_location = originalGpsInterface->inject_location;
- newGpsInterface.delete_aiding_data = originalGpsInterface->delete_aiding_data;
- newGpsInterface.set_position_mode = originalGpsInterface->set_position_mode;
- ALOGV("%s setting extension wrapper", __func__);
- newGpsInterface.get_extension = wrapper_get_extension;
-
- }
- ALOGV("%s done", __func__);
- return &newGpsInterface;
-}
-
-static int open_gps(const struct hw_module_t* module, char const* name,
- struct hw_device_t** device)
-{
- struct gps_device_t *dev = malloc(sizeof(struct gps_device_t));
- memset(dev, 0, sizeof(*dev));
-
- ALOGV("%s was called", __func__);
-
- dev->common.tag = HARDWARE_DEVICE_TAG;
- dev->common.version = 0;
- dev->common.module = (struct hw_module_t*)module;
- dev->get_gps_interface = gps_get_gps_interface;
-
- *device = (struct hw_device_t*)dev;
- return 0;
-}
-
-static struct hw_module_methods_t gps_module_methods = {
- .open = open_gps
-};
-
-const struct hw_module_t HAL_MODULE_INFO_SYM = {
- .tag = HARDWARE_MODULE_TAG,
- .version_major = 1,
- .version_minor = 0,
- .id = GPS_HARDWARE_MODULE_ID,
- .name = "GPS HAL Wrapper Module",
- .author = "Kolja Dummann",
- .methods = &gps_module_methods,
-};
generated by cgit v1.1 at 2024-12-22 09:24:27 +0000